- January 6: Greek forces defeat the Ottomans at Akrata.
- January 15: Georgios Karaiskakis defeats the Turks at the Battle of Agios Vlassis.
- April 13: The temporary Constitution of Epidaurus is revised by the Second National Assembly, which convenes in Astros of Kynouria.
- August 9: The Battle of Kefalovriso takes place during the Greek War of Independence. Markos Botsaris is killed.
- August 10: The funeral of Markos Botsaris takes place in Mesolonghi.
- August 20: Cretans battle with Turks at Amourgeles during the Greek War of Independence.
- August 28: The Battle of Kaliakouda is fought in the Greek War of Independence.
- December 2: The United States recognize de facto the Greek Revolutionary Council
- December 29: Lord Byron arrives in Messolonghi.