- 680: The Sixth Ecumenical Council convenes in Constantinople.
- 1911: The Ecumenical Patriarchate of Constantinople closes all churches until the persecution of Christians stops.
- 1926: Elections are held in Greece following the ouster of Theodoros Pangalos.
- 1943: German Nazi forces destroy the larger part of Karpenisi by setting it on fire.
- 1952: A warm welcome for Alexandros Papagos as the Greeks turn to his Greek Rally party