Anders Johan Sjögren (also spelled Andreas Johan Sjögren, in Russian also known as Andrei Mikhailovich Shëgren, Андре́й Миха́йлович Шёгрен; May 8, 1794 in Iitti, Finland – January 18, 1855 in St. Petersburg, Russia) was a Finnish linguist, ethnographer, historian and explorer. He is known especially for his work with various Finno-Ugric languages such as Veps. Sjögren is considered the creator of the Ossetian Cyrillic alphabet, which is still used today with some modifications. Source: Wikipedia (en)