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19 May 1917. United States Navy anchor in blue – first official US naval aircraft insignia. Used on rudders and wings. 17 May 1917. 8 February 1918. Note larger center dot from later (1/3 diameter) and colors were Flag Red and Flag Blue as specified for the US Flag as Old Glory Red, and Old Glory Blue . 8 February 1918.
The polar bear warning sign in Svalbard recently changed from displaying a black bear on white background to a white bear on black background (both signs are triangular with a red border). Some countries (like France , Norway and Spain ) that normally use a white background have adopted an orange or amber background for road work or ...
Facilities and services such as housing, healthcare, education, employment, and transportation have been systematically separated in the United States based on racial categorizations. Segregation was the legally or socially enforced separation of African Americans from whites, as well as the separation of other ethnic minorities from majority ...
The DOT pictograms are a set of fifty pictograms used to convey information useful to travelers without using words. Such images are often used in airports, train stations, hotels, and other public places for foreign tourists, as well as being easier to identify than strings of text. Among these pictograms are graphics representing toilets and ...
In the United States, stop signs are 30 inches (76 cm) across opposite flats of the red octagon, with a 3 4 -inch (2 cm) white border. The white uppercase stop legend is 10 inches (25 cm) tall. [ 4][ 5] Larger signs of 35 inches (89 cm) with 12-inch (30 cm) legend and 1-inch (2.5 cm) border are used on multi-lane expressways.
Block Elements. Block Elements is a Unicode block containing square block symbols of various fill and shading. Used along with block elements are box-drawing characters, shade characters, and terminal graphic characters. These can be used for filling regions of the screen and portraying drop shadows. Its block name in Unicode 1.0 was Blocks.
This is a list of flags, arranged by design, serving as a navigational aid for identifying a given flag.Uncharged flags are flags that either are solid or contain only rectangles, squares and crosses but no crescents, circles, stars, triangles, maps, flags, coats of arms or other objects or symbols.
A border of linked swastikas was a common Roman architectural motif, [128] and can be seen in more recent buildings as a neoclassical element. A swastika border is one form of meander, and the individual swastikas in such a border are sometimes called Greek keys. There have also been swastikas found on the floors of Pompeii. [129]