Wikipedia:Selected anniversaries/August 3
August 3: Independence Day in Niger (1960); Flag Day in Venezuela.
- 435 – Nestorius, the originator of Nestorianism, was exiled by Byzantine Emperor Theodosius II to a monastery in Egypt.
- 1916 – Irish nationalist Sir Roger Casement was hanged at London's Pentonville Prison for treason for his role in the Easter Rising, a rebellion to win Irish independence from Britain.
- 1923 – Calvin Coolidge (pictured) was inaugurated as the 30th President of the United States, succeeding Warren G. Harding who suffered a fatal heart attack one day earlier.
- 1948 – Before the House Un-American Activities Committee of the United States House of Representatives, former spy turned government informer Whittaker Chambers accused U.S. State Department official Alger Hiss of being a communist and a Soviet spy.
- 1958 – The nuclear-powered submarine USS Nautilus made the world's first submerged voyage across the North Pole.
- 2005 – President Maaouya Ould Sid'Ahmed Taya of Mauritania was overthrown in a military coup while he was attending the funeral of King Fahd in Saudi Arabia.
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