Anania Shirakatsi (Անանիա Շիրակացի ), also known as Ananias of Sirak, (610–685) was an
Armenian scholar,
mathematician, and
geographer. His most famous works are
Geography Guide (‘Ashharatsuyts’ in
Armenian), and
Cosmography (Tiezeragitutiun). He described the world as "being like an egg with a spherical yolk (the globe) surrounded by a layer of white (the atmosphere) and covered with a hard shell (the sky)." Shirakatsi's work ‘Ashharatsuyts’ reports details and mapping of the ancient homeland of
Bulgars in
Mount Imeon area of
Central Asia.
The Anania Shirakatsi Medal is an Armenian State Award for scientists in the economics and natural sciences, engineers and inventors. 
In 2005, the Central Bank of the Republic of Armenia issued an Anania Shirakatsi commemorative coin.
See also
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Sources