Wikipedia:Selected anniversaries/January 30
- 1649 - King Charles I was beheaded for high treason in front of the Banqueting House in London during the English Civil War.
- 1826 - The Menai Suspension Bridge, considered the world's first modern suspension bridge, was opened, connecting the island of Anglesey and the mainland of Wales.
- 1930 - The world's first radiosonde, a device attached to weather balloons to measure various atmospheric parameters, was launched by meteorologist Pavel Molchanov in Pavlovsk, USSR.
- 1948 - Nathuram Godse shot Mahatma Gandhi (pictured) to death with a Beretta pistol at Birla House in Delhi.
- 1968 - Vietnam War: Viet Cong forces launched the Tết Offensive on Vietnamese New Year's Day.
Recent days: January 29 – January 28 – January 27
More anniversaries: