Triskelion
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AWB triskelion flag, a rare example of use by nationalist groups.
A triskelion (Greek: "three-legged"), plural triskelia, is an ancient symbolic figure consisting of three bent limbs or lines radiating from a centre. The symbol may refer to something having three sides or aspects, such as the shape of islands or religious trinities.
The triskelion has traditionally been used as a symbol for, or more recently claimed to be a symbol for, Sicily, Malta, the Isle of Man, Brittany, Celts, and some forms of neopaganism.