Herodotus Day in Greece
Herodotus Day in Greece is held on November 23. This event in the third decade of the month november is annual.
The Apocryan festival begins in Patras, Greece on January 17 (Αποκριά takes three weeks. Patras is the largest city and port in the Peloponnese);
Feast of the Three Holy Hierarchs on January 30 (the Orthodox Church, for example, in Greece celebrates the Three Holy Hierarchs: Basil the Great, Gregory the Theologian and John Chrysostom);
Engineer's Day in Greece on March 10 (Known across the engineering student community as "Hemera Mihanikou");
Filellin Day and International Solidarity in Greece on April 19 (Decree of the President of Greece 130/2008 on the feast day of George (Lord) Byron)