April 21

Sunday 21, 1985:

Ayrton Senna wins the first of 41 Formula One championship races at the Portuguese Grand Prix in Estoril.

Friday 21, 1967:

A few days before the general election in Greece, Colonel George Papadopoulos leads a coup d'état, establishing a military regime that lasts for seven years.

Thursday 21, 1960:

Founding of the Orthodox Baha'i faith in Washington, DC.

Saturday 21, 1945:

World War II: Soviet Union forces south of Berlin at Zossen attack the German High Command headquarters.

Sunday 21, -753:

Romulus founds Rome (traditional).