- 904: Arab pirates capture Thessalonica and enslave its inhabitants
- 1913: Bulgaria signs an armistice ending hostilities in the Second Balkan War.
- 1920: Ion Dragoumis is shot dead by policemen in Athens. The nationalist politician was believed to have been involved in the Venizelos murder attempt of the previous day.
- 1960: The first legislative elections take place in the newly-established Republic of Cyprus. 35 Greeks and 15 Turks are elected in the unicameral House of Representatives.
- 1969: The Greek state starts to issue pensions for distinguished retired writers and actors.
- 1980: Turkish diplomat Galip Osman is assassinated along with his daughter in Pangrati, Athens.
- 1993: 12 persons are killed by a fire on the island of Icaria.
- 1922: With a signed document, Panathinaikos president Giorgos Hatzopoulos, who designed the 3-leaf clover and general secretary, Mihalis Papazoglou, who selected it, announce the new name of Panathinaikos, from PPAO to PAO
- 1927: 100 athletes participate at the Hellenic American Games in a New York stadium. The meeting is organized by the Greek clubs of New York and Chicago and performances are better than the Greek national records.
- 1960: Panathinaikos win the first greek league title after beating AEK 2-1
- 1968: American chess Grandmaster Bobby Fisher plays five simultaneous games in Athens against Greek chess masters. He wins four - against Apostolopoulos, Christos Kokkoris, Ornithopoulos and Vyzantiadis - and draws against Giorgos Trikaliotis.
- 1976: With a letter handed by Epaminondas Petralias to IOC's chairman Lord Killanin, Prime minister Konstantinos Karamanlis suggests that the Olympics should take place only in Greece. IOC will not adopt his point of view
- 1992: Weightlifter Pyrros Dimas wins gold in the Barcelona Olympic Games.
- 2006: Swimming in the fifth heat of the 400-meter freestyle qualifiers at the European Swimming Championships in Budapest, Spyros Gianniotis set a new national record with a time of 3:48.67, breaking the previous record of 3:48.77, which he had set at the Athens Olympics two years ago.
- 2006: Aris Grigoriadis, competing in the 100-meter backstroke at the European Swimming Championships in Budapest, broke his own national record with a time of 54.51 seconds, trimming a 10th of a second from the 54.61 seconds he had registered at the Worlds in Montreal last year.
- 2012: Haris Mavrias scores the second goal in a 2-0 Champions' League qualifier at Motherwell, and becomes the youngest Panathinaikos player to score in Europe, breaking the record of Giourkas Seitaridis.