November 17th.

November 17th. This day carries a lot of baggage in Greece - it commemorates a tragic day in 1973 when protesting students were killed by the government then in power. And it's the name of a Greek anarchist group which arose after that incident.

Most years, around this date it's a good idea to avoid Syntagma Square and its hotels and to stay away from Embassy Row in Athens, as protestors tend to congregate at those spots in large numbers.

Otherwise, this difficult date should have little effect on your Greek travel plans.