313: Constantine the Great sees a vision of the Cross with the inscription “In this sign thou shalt conquer”.
1880: Former Prime Minister of Greece, Thrasyvoulos Zaimis dies.
1951: Nikolaos Plastiras forms a government with Sofoklis Venizelos (son of Eleftherios Venizelos) as his Foreign Minister. It is the third time Plastiras becomes Prime Minister of Greece.
1958: Archaeologists uncover precious archaeological findings in Brauron, one of the twelve cities ancient of ancient Attica.