23rd Feb
1633 The birth of Samuel Pepys, London diarist, Secretary to the Admiralty and creator of the modern Royal Navy.
1820 British police uncovered 'The Cato Street Conspiracy', planned by Arthur Thistlewood, to assassinate Cabinet ministers. Five of the eighteen conspirators were publicly hanged outside Newgate prison on 1st May 1820, six were transported to Australia for life, and the rest were either rewarded or released due to their status as spies, agent provocateurs, or men who had turned King's Evidence. The Spencean Philanthropists, the group that devised the Cato Street Conspiracy, involved men of all walks of life. Many were struggling tradesmen while others like John Harrison and Robert Adams were just two of many disillusioned soldiers that had been dragged into the Revolutionary and Napoleonic Wars only to return home to be faced by hunger and unemployment.
1874 Major Walter Clopton Wingfield patented an outdoor game he called ‘Sphairistike’ (Greek for "ball games), later known as lawn tennis. Eventually it was adopted by the All England Croquet Club which sponsored the first Wimbledon championships in 1877.
1972 Hijackers surrender and free Lufthansa crew. A group of Palestinian hijackers who took over a Lufthansa jet in the skies over India released the crew and surrendered at an airstrip in the Yemen. All the 172 passengers - including Joseph Kennedy, son of the late Senator Robert Kennedy - were freed after painstaking negotiations with the prime minister of Yemen, Nasser Muhammad, and West German officials.