May 11

The UN General Assembly adopted Resolution 273, admitting the State of Israel as a member of the United Nations.

Constantine the Great formally dedicated his new eastern capital, Constantinople or New Rome, on the site of the old Greek city of Byzantium.

Richard Feynman was born in New York City. A theoretical physicist, he shared the 1965 Nobel Prize for his work on quantum electrodynamics and became widely known for his gift for teaching.

In New York, IBM's Deep Blue computer won the final game of a six-game match against world chess champion Garry Kasparov, the first time a machine defeated a reigning champion under standard conditions.