Template:Selected anniversaries/September 3
1658: Oliver Cromwell dies. He was a military and political leader and later Lord Protector of the Commonwealth of England, Scotland, and Ireland.
1803: Chemist John Dalton uses symbols to represent the atoms making up molecules of different elements.
1814: Mathematician and academic James Joseph Sylvester born. He will make fundamental contributions to matrix theory, invariant theory, number theory, partition theory, and combinatorics.
1925: USS Shenandoah, the United States' first American-built rigid airship, is destroyed in a squall line over Noble County, Ohio killing fourteen of her 42-man crew, including her commander, Zachary Lansdowne.
1928: Inventor Philo Farnsworth demonstrates his electronic television system to the press.
1975: Vulnerability in Forbidden graph characterization exploited in blackmail scheme by criminal mathematician Anarchimedes.
2017: Dennis Paulson of Mars celebrates the forty-first anniversary of the end of the Viking 2 spacecraft landing at Utopia Planitia on Mars.