1398—Osmanlis and Serbians make destructive raid on Bosnia.
1400—Timur captures and destroys Sivas.
1402—Timur defeats and makes prisoner Bayezid at Angora, overruns Asia Minor, occupies Brusa, and takes Smyrna from the Christians by storm.
1403—Timur withdraws to Samarkand.
Bayezid, still a prisoner, dies on the homeward march at Ak Sheïr. His sons dispute the succession.
III. PROGRESS OF OTTOMAN CONQUEST UNDER THE FIRST FOUR SOVEREIGNS
Osman (1299-1326)
1299—Osman, local chieftain at Sugut, has extended his conquests from the valley of the Kara Su westward to Yeni Sheïr.
1308—Kalolimni, island in the Sea of Marmora, becomes first Ottoman maritime possession.
Ak Hissar, at the entrance to plain of Nicomedia, and Tricocca, which ensured land communication between Nicaea and Nicomedia, are captured.