- 1439: The union of the Catholic and Eastern Orthodox Church is approved at the Council of Florence.
- 1925: A powerful earthquake (6.6 on the Richter scale) strikes Achaea prefecture and the surrounding area.
- 1959: New, mandatory ID cards are issued in Greece.
- 1960: The constitution of the newly-established Republic of Cyprus is finalised.
- 1975: Kyriakos Onesiphorou breaks the Greek record for the 400m with 46.56.
- 1999: Nikos Machlas transfers from Vitesse Arhnem to Ajax Amsterdam for 5.5 billion drachmas.
- 2003: Greek-Australian Mark Philippoussis loses the Wimbledon final to Roger Federer.
- 2010: An era comes to an end as Olympiakos president, Socrates Kokkalis sells his interests in the club to shipowner Vangelis Marinakis.