Sima Ćirković was a Yugoslav and Serbian historian. Ćirković was a member of the Academy of Sciences and Arts of Bosnia and Herzegovina, the Yugoslav Academy of Sciences and Arts, the Montenegrin Academy of Sciences and Arts, the Serbian Academy of Sciences and Arts and the Vojvodina Academy of Sciences and Arts. His works focused on medieval Serbian history.

The Serbian Cyrillic alphabet is a variation of the Cyrillic script used to write the Serbian language, updated in 1818 by the Serbian philologist and linguist Vuk Karadžić. It is one of the two alphabets used to write modern standard Serbian, the other being Gaj's Latin alphabet.