Start of the Greek War of Independence?

Or, How Politics Affects History

March 25, 1821:

 (Julian Calendar) Traditional date of the start of the Greek War of Independence. The war had actually began since 23 February 1821. The date was chosen in the early years of the Greek state so that it falls on the day of the Annunciation of the Blessed Virgin Mary, strengthening the ties between the Greek Orthodox Church and the newly-found state.

A side note on the War of Independence:

The consequences of the Greek revolution were somewhat ambiguous in the immediate aftermath. An independent Greek state had been established, but with Britain, Russia and France claiming a major role in Greek politics, an imported Bavarian dynast as ruler, and a mercenary army. The country had been ravaged by ten years of fighting, was full of displaced refugees and empty Turkish estates, necessitating a series of land reforms over several decades.