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| 1351 |
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Stefan Du an besieged Thessalonica. | 1 |
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| 1353 |
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| The Ottoman Turks, called in by Cantacuzene, defeated the Serbs. | 2 |
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| 1354 |
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| The Ottoman Turks established themselves at Gallipoli, thus continuing their career of expansion (See 1354). | 3 |
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| 1354 |
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| John V took Constantinople and forced the abdication of Cantacuzene (d. 1383). At the same time Dusan, having taken Adrianople, advanced on the capital. His sudden death (1355) led to the disintegration of the Serbian Empire and to the removal of a great threat to the Greeks. On the other hand, it left the Christians an easier prey to the advancing Ottomans. | 4 |
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| 1365 |
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| The Ottomans, having overrun Thrace, took Adrianople, which became their capital. | 5 |
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| 1366 |
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| John V, who had been captured by Tsar Shishman of Bulgaria, was liberated by his cousin, Amadeus of Savoy. | 6 |
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| 1369 |
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| John V appeared before the pope at Avignon and agreed to union of the churches, in order to secure the aid of the west against the Turks. | 7 |
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| 1376–79 |
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| ANDRONICUS IV, the son of John V, dethroned his father with the aid of the Genoese. | 8 |
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| 1379–91 |
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| John V, supported by the Ottomans, recovered his throne. | 9 |
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| 1386 |
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| The Venetians recovered Corfu, which they held until 1797. | 10 |
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| 1388 |
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| The Venetians purchased Argos and Nauplia. | 11 |
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| 1389 |
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| Battle of Kosovo Polje (Kossovo), in a valley in southern Serbia between Pristina and the Laba River, waged between Serbian and Ottoman forces (See 1389 (Traditionally June 15)). The Byzantine, Ottoman, and Serbian historical sources sharply conflict, though modern scholars believe that the battle was a draw. In any case, Serbia became an Ottoman vassal state and the Balkan Peninsula was opened to further Ottoman expansion. | 12 |
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