The coin is dedicated to 150th anniversary of Dmytro Yavornytsky (1855 – 1940), a historian, an archaeologist, an ethnographer, a specialist in folklore and a writer. Being a a person of versatile interests, Dmytro Yavornytsky devoted almost all his life to study the history of Zaporizhia Cossacks, which was crowned with "The History of Zaporizhia Cossacks" in three books. In circulation since September 22, 2005.