March 29:

A.D. 1461: 30,000 are killed in the Battle near Towton Field in the War of the Roses.

A.D. 1632: The Treaty of St. Germain is signed, returning Quebec to French control from the British, who had possessed it since 1629.

A.D. 1795: Ludwig van Beethoven debuts as a pianist in Vienna.

March 30:

A.D. 1282: The Sicilian Vespers; Sicilians rise up against King Charles I.

A.D. 1492: A decree expelling Jews from Spain is signed by King Ferdinand and Queen Isabella.

A.D. 1856: The Crimean War ends with Russia's signing of the Peace of Paris.

A.D. 1858: The pencil with an attached eraser is patented.