Armenian eternity sign

The Armenian eternity sign (, "haverzhut’yan nshan") or Arevakhach (, "Sun Cross") is an ancient Armenian national symbol and a symbol of the of the . It is one of the most common symbols in Armenian architecture, carved on "khachkars" and on walls of churches.
Evolution and use.
In medieval Armenian culture, the eternity sign symbolized the concept of everlasting, celestial life. Since the 5th century, it appeared on Armenian steles, later it becomes part of "khachkar" symbolism. Around the 8th century the use of the Armenian symbol of eternity had become a long established national iconographical practice, and it keeps its meaning until the modern times. Besides being one of the main components of "khachkars", it can be found on church walls, tomb stones and other architectural monuments. Notable churches with the eternity sign include the Mashtots Hayrapet Church of Garni, Horomayr Monastery, Nor Varagavank, Tsitsernavank Monastery. An identical symbol appears in the reliefs of the Divriği Great Mosque and Hospital, and is likely a borrowing from earlier Armenian churches of the area. It can also be found on Armenian manuscripts.
The eternity sign is used on the logos of government agencies and on commemorative coins, as well as Armenian government agencies and non-government organizations and institutions in Armenia and the Armenian diaspora.
The symbol is also used by Armenian neopagan organizations and their followers. It is called by them "Arevakhach" (, "sun cross").
ArmSCII and UNICODE.
In ArmSCII, Armenian Standard Code for Information Interchange, an Armenian eternity sign has been encoded in 7-bit and 8-bit standard and ad hoc encodings since at least 1987. In 2010 the Armenian National Institute of Standards suggested encoding an Armenian Eternity sign in the Unicode character set, and both right-facing and left-facing Armenian eternity signs were included in Unicode version 7.0 when it was released in June 2014.