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Looped square

The looped square (Unicode U+2318, ⌘), also known as the place of interest sign, Saint John's Arms, or Saint Hannes cross, is a geometric symbol consisting of a square with a single loop extending outward from each of its four corners. This ancient emblem traces its earliest known appearance to Northern Europe during the Migration Period, prominently featured as a central design element on a picture stone discovered at Havor in Hablingbo, Gotland, Sweden, dating to the latter half of the 5th century CE.^[1] Archaeological evidence suggests it may have held ritual or decorative significance in pre-Christian Scandinavian contexts, though its precise meaning remains interpretive among scholars.^[1] By the medieval period, the symbol evolved into a protective motif associated with Midsummer celebrations honoring Saint John the Baptist, earning traditional names such as sankthanskors (Swedish for "Saint John's cross"), johanneskors (Danish), and hannunvaakuna (Finnish for "John's flag"), often carved on objects to ward off evil spirits or misfortune. In contemporary usage, the looped square designates sites of cultural or historical interest on road signage across several Nordic countries, including Sweden, Denmark, Norway, and Finland, where it highlights tourist attractions, museums, and heritage locations. Its global prominence surged in the digital age when graphic designer Susan Kare selected it in 1983 for the Command key on the original Apple Macintosh keyboard, drawn from an international symbol dictionary as a clear, non-proprietary icon for accessing menus and shortcuts—unaware at the time of its deep historical roots.^[2] Today, the symbol endures in computing interfaces, Unicode standards, and cultural iconography, bridging ancient traditions with modern technology.

Description and Symbolism

Physical Characteristics

The looped square is a geometric symbol consisting of a square with outward-pointing loops at each of its four corners, forming a continuous, closed path that resembles a simple knot or intertwined lines. This design is inherently symmetrical, featuring four identical loops that contribute to its balanced, rotational structure. In standard representations, the loops are typically depicted as rounded extensions—often shaped like quarter-circles or curls—protruding from the square's corners, with the overall figure maintaining equal height and width to preserve its squarish proportions. These loops connect seamlessly to the square's sides, creating a unified outline without breaks.^[3] The looped square differs from a plain square, which relies on straight, unadorned lines, and from the swastika, which employs L-shaped arms extending in a directional manner; instead, its enclosed loops evoke an illusion of perpetual motion or boundlessness, devoid of any inherent orientation.^[4] One of the earliest known artifacts featuring the looped square is the Hablingbo Havor II picture stone from Gotland, Sweden, dated to the Migration Period (400–600 AD), where it serves as the central motif within a 46 cm diameter roundel, rendered in chiselled bands 1–2.5 cm wide and approximately 1 mm deep.^[5] This carving exemplifies the symbol's early form as a bold, incised geometric element on limestone, with line drawings of the stone highlighting the loops' smooth, curving integration into the square.^[1]

Cultural and Protective Significance

In Finnish tradition, known as hannunvaakuna, the looped square was used as a protective symbol against evil, appearing on various objects. Examples date back approximately 1000 years.^[3] In Scandinavian traditions, the looped square became associated with Saint John the Baptist and Midsummer's Eve celebrations, where it symbolized faith.^[6] Cross-cultural parallels include its appearance in Mississippian shell gorgets from A.D. 1250–1450, such as the Cox Mound gorgets, where the looped square motif framed central icons, possibly representing wind directions or a chief's litter.^[7]

Historical Development

Ancient European Origins

The looped square symbol first appears in the archaeological record of Europe on Gotland picture stones from the late Iron Age in Scandinavia. One of the earliest documented instances is on the Hablingbo Havor II picture stone, discovered at the Havor cemetery in Hablingbo parish, Gotland, Sweden, and dated to the Migration Period, approximately late 5th century CE (c. 400–600 AD).^[5] This limestone monument features the symbol as a prominent central quatrefoil knot motif, integrated into the stone's ornamental border and figural composition, likely serving as a decorative element in a pre-Christian context. The stone's design reflects broader trends in Gotlandic art, where such knot patterns adorned memorial or ritual objects carved from local limestone. Contemporary examples also appear on gold bracteates, such as the one from Lyngby, Denmark, dating to the Migration Period (c. 4th–7th century AD).^[4] During the Viking Age (ca. 800–1050 AD), the symbol spread across Scandinavia, appearing in Norwegian valknute designs—a category of interlocked knot motifs used in heraldry, woodcarving, and metalwork for both decorative and possibly protective purposes. Examples include its incorporation into Viking-era artifacts from Norway, where it formed part of intricate knotwork patterns on everyday items like tools and furniture, indicating adoption in craftsmanship and daily life. In Finland, the motif is evidenced on wooden objects from the same period, such as a pair of skis carbon-dated to approximately 675–870 AD, preserved in the collections of the National Museum of Finland in Helsinki; these carvings suggest practical use in mobility aids within pre-Christian Finnic communities. The looped square's timeline traces from Iron Age Scandinavia, where it emerged amid regional knotwork traditions on stone and wood, to medieval Europe. Archaeological sites like the Havor cemetery highlight its material versatility, spanning limestone picture stones in Sweden and wooden carvings in Finland. By the medieval period, the symbol had evolved into Christian contexts, notably marking Saint John's Day (June 24) in Scandinavian calendars, as reflected in its Swedish designation sankthanskors (Saint Hans's cross), denoting its role in liturgical notation for the feast of John the Baptist. This transition underscores hypothesized pagan origins in Nordic pre-Christian art, where endless knot motifs symbolized continuity or protection, later adapted for ecclesiastical use without direct evidence of ritual continuity.

Uses in Other Regions

In the Mississippian culture of southeastern North America, spanning approximately 800 to 1600 AD, the looped square motif appears prominently on etched shell gorgets and copper plates, often as a central element in ritual artifacts. These gorgets, crafted from marine shells sourced from the Gulf Coast, feature the looped square as a scroll-like border enclosing symbols such as a rayed sun or cross, symbolizing concepts like wind directions or a chief's ceremonial litter carried by attendants.^[7] This design, typically formed by four interlocking lines (occasionally three), reflects the motif's role in the Southeastern Ceremonial Complex, a shared iconographic system denoting status, cosmology, and supernatural power among elite burials.^[7] Archaeological evidence from key sites underscores the motif's regional significance. At Moundville in Alabama, a major Mississippian center occupied from around 1000 to 1450 AD, incised looped square designs appear on rim-effigy bowls and other ritual ceramics, interpreted as representations of the Middle World or directional cosmology within earthenware contexts.^[8] Similarly, the Cox Mound site in Tennessee yielded over 30 such gorgets since late 19th-century excavations, often interred in stone-box graves alongside Matthews Incised pottery, dating to 1250–1450 AD and linking the motif to warrior or chiefly iconography, including woodpecker scalping motifs associated with Yuchi wind myths.^[7] Northern Alabama sites along the Tennessee River also preserve examples on rare materials like black slate, highlighting the motif's use in high-status contexts across the culture's heartland.^[7] Beyond North America, rare parallels to the looped square emerge in ancient Near Eastern artifacts, suggesting possible convergent evolution in geometric knot-like symbols rather than direct cultural transmission. In Byzantine-era mosaics from Jordan, such as those in the 6th-century church at Kufer-Jayez, a looped square motif—composed of four interlaced segments dividing into smaller squares with central octagons—adorns floor panels, evoking protective or cosmological patterns common in regional decorative arts.^[9] Similar interlooped square designs appear in Madaba's geometric mosaics, where looped circles integrate with squares in border motifs, reflecting influences from earlier Hellenistic and Roman traditions in the Levant.^[10] In Asian contexts, documented instances are scarcer, with faint echoes in curvilinear interlooped squares on Central Asian chamber artifacts, potentially tied to nomadic decorative traditions but lacking clear lineage to Mississippian forms.^[11] Modern scholarship debates whether these non-European appearances indicate diffusion through ancient trade networks or independent invention driven by universal geometric appeal in symbolic art. 20th-century excavations at sites like Castalian Springs and Moundville, analyzed in works on the Southeastern Ceremonial Complex, emphasize independent development in the Americas, with no archaeological evidence of transoceanic contact supporting diffusion hypotheses.^[7] Conversely, comparative studies of Near Eastern mosaics highlight convergent patterns in knot motifs across Eurasia and the Americas, attributing similarities to shared human tendencies in abstracting celestial or directional concepts without implying direct exchange.^[9] These discussions, informed by iconographic analyses from the mid-20th century onward, prioritize regional contexts over global interconnectedness.^[12]

Nomenclature and Variations

Traditional Names Across Cultures

In Scandinavian traditions, the looped square is commonly known as "sankthanskors" in Swedish, translating to "Saint John's cross," a designation rooted in its historical use to mark the feast of Saint John the Baptist in medieval calendars and folk practices. The Danish equivalent, "johanneskors," shares this etymology, emphasizing the symbol's connection to Christian saint veneration while possibly overlaying earlier pagan protective motifs. In Norwegian nomenclature, it is termed "valknute," evoking the image of a folded or intertwined rope knot, which highlights its origins in ancient knot-making and ornamental traditions predating Christian influences. Finnish folklore designates the symbol as "hannunvaakuna," meaning "John's banner," or "käpälikkö," describing its paw-like looped form; these names illustrate a syncretic blend of pagan animistic beliefs—where the loops may represent cardinal directions or seasonal spirits—and Christian associations with Saint John. This duality underscores the symbol's role in protective rituals across pre-Christian and medieval periods. In English-speaking contexts and broader European heraldry, the looped square appears as "Saint John's Arms" or "Saint Hannes cross," terms that trace etymologically to medieval associations with Saint John the Baptist, symbolizing safeguarding against harm in a manner consistent with Nordic saintly iconography. Regional variations, such as the Icelandic "krosshnot" or "cross knot," further emphasize knot-tying heritage in insular Scandinavian cultures, where the symbol denoted historical sites or apotropaic wards. These names collectively reveal the looped square's enduring folkloric terminology, often intertwining sacred protection with everyday craftsmanship. In knot theory, the looped square consists of four interconnected loops that form a single closed curve; its topological structure corresponds to the unknot, presented via a diagram with four crossings. This configuration aligns with pretzel-like knots in descriptive terms, emphasizing its symmetric, multi-lobed form without true knottedness under continuous deformation. It is distinct from the valknut, a Norse symbol featuring three interlocked triangles. Within European heraldry, the looped square bears close parallels to the true lover's knot, also known as the Bowen knot, a simple interlaced design employed as a charge in coats of arms to symbolize fidelity and unity. It shares visual and emblematic traits with the endless knot, another heraldic motif denoting eternity, though the looped square's squared geometry distinguishes its application in armorial bearings. The looped square is differentiated from the swastika, which relies on rotational arms rather than looped projections, and from Celtic knots, which feature multiple interlaced strands forming complex braids rather than a unified loop structure. In Norse art, it exemplifies this distinct interlaced style, appearing on Viking Age artifacts such as Gotland picture stones, where it adorns decorative elements like garments and borders to evoke protective or mythical connotations. Variations of the looped square include simplified iterations with open or partially detached loops, observed in medieval manuscripts and Viking-era metalwork, which retain the core square motif while adapting to ornamental contexts for ease of rendering.

Contemporary Applications

Public Signage and Heraldry

The looped square symbol functions as a standardized place of interest sign in several Nordic countries, marking cultural heritage sites and historical landmarks for tourists and travelers. This usage originated in Finland during the 1950s and subsequently spread to neighboring nations, including Sweden and Denmark, where it aids wayfinding to noteworthy locations. In Sweden, the symbol designates road sign H22, applicable to sights of national interest registered with county administrative boards, and is regulated under national traffic signage provisions for consistent placement along roadways.^[13]^[14] In Denmark, the looped square appears on similar informational signs to highlight historical and cultural attractions, aligning with regional wayfinding practices. Finland employs it on brown tourist signs for landmarks, reinforcing its role in promoting national heritage. These applications emphasize the symbol's simplicity and recognizability, with government guidelines specifying its geometric form—a square with outward loops at each corner—for optimal visibility at distances typical of vehicular travel. The looped square also features in heraldic and architectural elements, particularly in Finland, where it adorns the obverse of the 5 penniä coin issued from 1977 to 1990, depicted as the Saint Hannes cross to evoke protective and cultural motifs.^[15] At sites like Borgholm Castle in Sweden, the symbol marks the ruins as a protected heritage location, with some design historians noting its visual resemblance to an overhead view of the castle's layout, though this connection remains speculative rather than definitive.^[16] Standardization efforts by Nordic transport authorities ensure uniform implementation, with rules governing sign dimensions, materials, and positioning to enhance safety and accessibility. For instance, Swedish regulations mandate that H22 signs be mounted at intersections leading to registered sites, using reflective materials for nighttime visibility, while Finnish guidelines integrate the symbol into broader tourism signage systems without altering its core proportions.^[13] Contemporary revivals of the looped square extend to festivals and crafts, where it appears in decorative items and artisanal works drawing on its historical protective associations. In Finland, it features prominently in embroidery, wood carvings, and jewelry lines like the Kalevala Amuletti series, often incorporated into Midsummer festival ornaments and household crafts to symbolize good fortune and cultural continuity.^[17]

Technology and Digital Media

The looped square symbol gained prominence in computing through its adoption as the icon for Apple's Command key (⌘), introduced in 1984 on the original Macintosh keyboard. Designed by graphic artist Susan Kare, the symbol served as a modifier key to invoke menu shortcuts and commands, replacing an earlier proposal to use the Apple logo itself. Steve Jobs rejected the Apple logo for this role after observing its overuse in early software interfaces like MacDraw, prompting Kare to select the looped square for its abstract, non-alphanumeric form that avoided confusion with text characters in menus. Kare sourced the design from a book of symbols, where it appeared as a marker for "places of interest" on Swedish tourist maps, appreciating its clean, distinctive geometry suitable for low-resolution bitmap displays of the era.^[18]^[19] Beyond Apple, the looped square has appeared in other operating systems and software branding. In elementary OS, a Linux distribution emphasizing simplicity, the symbol denotes the Super key—a modifier for system shortcuts—chosen for its public domain status, broad recognizability, and neutrality compared to trademarked alternatives like the Windows logo. These uses highlight the symbol's versatility in user interfaces and branding within open-source and enterprise software environments.^[20] In digital media and design, the looped square has evolved from rudimentary bitmap representations in early computing to scalable vector graphics in contemporary tools. Initially rendered in 72x72 pixel grids for Macintosh icons, it transitioned to vector formats with the rise of PostScript and SVG standards, enabling crisp rendering across devices and resolutions. The symbol features in icon libraries such as those from The Noun Project and Flaticon, where it serves as a generic emblem for commands, locations, or loops in user interface design. In video games, particularly those developed for macOS, it often appears in control mappings to indicate Command key inputs, bridging historical symbolism with interactive digital experiences.^[21]^[22] The looped square's integration into technology has fostered cultural references in tech communities, often linking its form to Nordic heritage. Discussions in design forums and articles frequently trace its "place of interest" origins to Scandinavian signage, inspiring playful nods to Viking-era motifs in developer lore and online tech narratives. This connection underscores the symbol's role as a bridge between ancient iconography and modern digital culture, evoking a sense of historical continuity in user interactions.^[18]^[23]

Technical Representation

Unicode Encoding

The looped square symbol is formally encoded in the Unicode Standard as U+2318, with a decimal value of 8984, within the Miscellaneous Technical block (U+2300 to U+23FF).^[24] This assignment designates it as the "PLACE OF INTEREST SIGN," reflecting its origins in cartographic and touristic signage, though it is also known by aliases such as "COMMAND KEY" in legacy Unicode documentation and "OPERATING SYSTEM KEY" per ISO 9995-7 keyboard standards.^[25] The character was introduced in Unicode version 1.1, released in 1993, as part of the initial expansion of symbol encodings to support technical and miscellaneous glyphs.^[26] In some computing systems and documentation, it retains the alias "command" due to its adoption as a modifier key symbol on certain keyboards, though this usage is secondary to its standardized name.^[25] Technically, U+2318 is categorized as an Other Symbol (So) with bidirectional class Other Neutral (ON) and no mirroring properties, ensuring consistent left-to-right rendering. Its UTF-8 encoding consists of the byte sequence E2 8C 98, while UTF-16 uses FEFF 23 18 (big-endian) and UTF-32 uses 00 00 23 18.^[25] The Unicode Consortium maintains official charts and data files detailing U+2318, which illustrate glyph variations across fonts and platforms, such as subtle differences in loop thickness or squaring in sans-serif versus serif typefaces.^[24] These resources, available via the Consortium's website, ensure interoperable digital representation while allowing for stylistic flexibility in rendering.^[27]

Graphical and Typographic Standards

The looped square symbol (U+2318) displays variations in loop styles across typefaces, influencing its overall appearance in typographic contexts. In the Symbola font, the loops are rendered with rounded curves for a fluid, organic look, while in Arial Unicode MS, they adopt a more angular, geometric form with sharper corners to align with sans-serif aesthetics. These differences arise from font designers' interpretations of the Unicode glyph outline, allowing adaptation to stylistic needs without altering the core square structure. Standards bodies provide guidelines for the symbol's graphical representation to ensure consistency in vector and raster formats. The International Organization for Standardization (ISO), through IEC 60417, registers the looped square as a graphical symbol equivalent to U+2318, specifying its use in equipment interfaces with defined stroke widths and proportions for clarity.^[28] The symbol maintains crisp edges at any size in vector formats like SVG due to its scalable nature. Accessibility considerations emphasize high-contrast rendering to support users with visual impairments. Guidelines recommend a minimum 3:1 contrast ratio between the symbol and its background in signage and user interfaces, often achieved by thickening lines or using bold fills against light or dark surfaces to prevent loss of detail in low-visibility conditions.^[29] In modern digital adaptations, the looped square transitions between pixel-based and smooth curve renderings depending on the display medium. Low-resolution digital signs may use pixelated versions for simplicity, resulting in blocky loops, whereas high-definition screens and vector-based UIs employ smooth Bézier curves for precision; examples include its bold, outlined form on Swedish road signs denoting tourist sites and stylized variants in interface icons approximating emoji aesthetics.

References

[1]
[PDF] A Gotlandic Picture Stone Tradition Reconsidered: - DiVA portal
Jun 20, 2023 · other parallels to the central looped square design that would place the stone in the latter half of the fifth century (Pesch 2012: 651f ...
[2]
Swedish Campground - Folklore.org
Our bitmap artist Susan Kare had a comprehensive international symbol dictionary and she leafed through it, looking for an appropriate symbol that was ...
[3]
Looped Square - Symbology Wiki
Origin and Meaning. This symbol is found on various ancient artifacts in Northern Europe, notably featuring prominently on a picture stone from Hablingbo ...
[4]
Identical Native American and Norse 'Looped Square' symbols
Apr 20, 2020 · Theoretically it's possible therefore that Native Americans adopted the 'looped square' symbol from the Vikings.Missing: origin | Show results with:origin
[5]
GP 133 Hablingbo Havor II - Gotlandic Picture Stones
Aug 26, 2025 · The picture stone was found during the excavation of the cemetery of Havor in 1886. It was discovered in a late Viking Age grave (grave No. 191) ...
[6]
Cox Mound Gorget | Tennessee Encyclopedia
Surrounding the cross and sun is a scroll-like design element known as the looped square. This feature may represent wind, or possibly the litter on which ...Missing: protective | Show results with:protective
[7]
[PDF] AN ICONOGRAPHIC ANALYSIS OF LATE MISSISSIPPIAN RIM ...
This design is equivalent to the looped square motif identified among many other Mississippian ritual art corpora (see Figure 27) and has been interpreted as a ...
[8]
[PDF] The Mosaic Designs of the Kufer-Jayez Church, Jordan
This motif is formed of a looped square of four segments divided into four equal smaller squares, where each small square encloses an octagon enclosing five ...
[9]
[PDF] geometric mosaic patterns design at madaba. a comparative study
The looped pattern is decoration of the floor of the church (Figs. 2, 16-18), four motifs appeared in the large square border two motifs are similar; in ...
[10]
Northern chamber: curvilinear square interlooped motif
The motif consists of looped circles connecting with a non-equilateral octagon and the center a target design. The colors are red, dark red, and white, on a ...
[11]
[PDF] The southeastern ceremonial complex: The evolution of a concept
Apr 27, 2023 · Phillips (1973:354) explains that the woodpecker gorgets are especially interesting because of their association with the looped square, which, ...
[12]
The Hunt for Red Herring: An historical-archaeological study of ...
10 Sankthanskors, or if you will, an Apple computer command key symbol. 71 ... The name is of unclear origin, the suffix vik meaning “cove”, and the ...
[13]
Zwischen lokalen Traditionen und kultureller Integration. Kontinuität und Wandel in den spätwikingerzeitlichen Bestattungen auf dem Gräberfeld von Havor, Hablingbo sn, auf Gotland
Summary of each segment:
[14]
Mechanisms of Security: Locks, keys, and ordered life in Iron Age ...
This thesis examines the technological and social parameters for, and the social impact of, the introduction and implementation of locking into Norway in ...
[15]
(PDF) Exploring the pattern and ideogram of A universal principle of ...
'Hannunvaakuna': (looped cross): symbol of protection against evil. 'Tursaansydän': bringer of good luck and protection against evil, also known as Ukko's ii.
[16]
(PDF) Edited Katja Juhola 2024 - Academia.edu
... Finnish symbol that depicts, among other things, the spirits of four directions. ... hannunvaakuna-eli-kapalikko/ 113 Figure. Participant 12 is pictured close-up ...Missing: folklore | Show results with:folklore<|separator|>
[17]
Revisiting the 'Valkyries': Armed Females in Viking Age Figurative ...
Dec 19, 2022 · The looped square – also known as the Gorgon knot – belongs to a class of interlaced symbols comprising triquetras, interlocked triangles and ...
[18]
Bowen Knot | ClipArt ETC - Florida Center for Instructional Technology
Nov 30, 2010 · A knot used in heraldic designs. Keywords: shield, heraldry, Knot, Badge, heraldic, bowen knot, bowen Galleries: Knots Source: Aveling, ST Heraldry: Ancient ...Missing: historical | Show results with:historical
[19]
[PDF] Vägverkets föreskrifter om vägmärken och andra anordningar
Oct 29, 2007 · 19 § Märke H22, sevärdhet, bör endast sättas upp för vägvis- ... 3 § Tavla T9, nedsatt syn, får endast sättas upp tillsammans med varningsmärken ...<|separator|>
[20]
The world's 16 most unusual road signs | DiscoverCars.com
Jul 9, 2025 · This symbol, the looped square, was first used for this purpose in Finland and has since spread to other places, especially Nordic countries.
[21]
5 penniä 1977 - 1990, Finland - uCoin.net
Obverse: 5 penniä 1977 - 1990, Finland. Cross. Description Saint Hannes cross (Looped square). Legend SUOMEN TASAVALTA. Creators: Peippo Uolevi Helle. Reverse ...
[22]
Debunking a Myth: Apple's Command-Key Icon is Not a Stylized Top ...
Apr 24, 2020 · The symbol was actually a stylized top view of Sweden's Borgholm Castle. Indeed, it does look pretty close.
[23]
Proximus Logo, symbol, meaning, history, PNG, brand - Logos-world
The Proximus logo, designed with a telecommunications theme, features stylized cables in an infinite bundle reminiscent of a Möbius strip.Missing: looped | Show results with:looped
[24]
Kalevala St. John's Arms Jewelry with Free Delivery - Laatukoru
Today, the Hannunvaakuna symbol is the symbol of the popular Kalevala Amuletti series, and if you wish, you can carry it with you in a pendant or earring.<|separator|>
[25]
How Apple Designed Its Command Key - Business Insider
Apr 28, 2015 · Kare didn't realize that the symbol was based on the outline of a castle's roof until years later. She chose it at the time because "it kind of ...
[26]
Interview with Susan Kare - Stanford University
... command key icon had come from a Swedish manual--. Kare: That was a concept we struggled with, because that was the control key. I can't even remember all ...Missing: origin | Show results with:origin
[27]
Why the Looped Square (⌘) Symbol? - elementary Blog
The looped square (⌘) denotes the Super key because it's not trademarked, widely available, and avoids using the word "Super" or the Windows symbol.
[28]
Systematic Review and Literature Review Software by DistillerSR
DistillerSR Logo. Smarter Reviews: Trusted Evidence. The global leader in AI-enabled literature review automation and enterprise evidence management software.Literature Review Software · DistillerSR AI · DistillerSR Inc. Accessibility · CareersMissing: looped square
[29]
Free SVG & PNG Looped Square Images - The Noun Project
Find 39 Looped Square images and millions more royalty free PNG & vector images from the world's most diverse collection of free icons.
[30]
Looped square Icons & Symbols - Flaticon
203 looped square icons. Vector icons in SVG, PSD, PNG, EPS and ICON FONT.Missing: video games
[31]
The Command Key: From Ancient Symbol to Apple Icon
Aug 6, 2024 · For instance, archaeologists discovered a picture stone in Havor, Gotland, dating between 400-600 AD, which indicates the symbol's long-standing ...
[32]
None
**Summary for U+2318:**
[33]
Unicode Character 'PLACE OF INTEREST SIGN' (U+2318)
Unicode Character 'PLACE OF INTEREST SIGN' (U+2318) ; UTF-16 (hex), 0x2318 (2318) ; UTF-16 (decimal), 8,984 ; UTF-32 (hex), 0x00002318 (2318) ; UTF-32 (decimal) ...Missing: looped square geometry
[34]
place of interest sign (u+2318) copy and paste - Unicode® Symbol
Codepoint (hex), 2318, u2318 ; Character age, Unicode 1.1 ; Legacy name (Unicode 1.0), COMMAND KEY ; Official name (Unicode 15.0), PLACE OF INTEREST SIGN.
[35]
https://www.unicode.org/ucd/
[36]
https://www.iso.org/obp/ui/#iec:grs:60417:6090
[37]
[PDF] standard ecma-6
LEGEND. The graphic characters in positions 2/2, 2/7, 2/12 and 5/14 have respectively the significance of. QUOTATION MARK, APOSTROPHE, COMMA and UPWARD ARROW.
[38]
G207: Ensuring that a contrast ratio of 3:1 is provided for icons - W3C
The objective of this technique is to ensure graphical icons provide enough contrast for people with vision impairments.