Siamese twins Chang and Eng Bunker arrived in Boston to be exhibited on this day in 1829.

Did you know that:

• Champion of England titleholder Jack Broughton published ‘Rules of the Ring’ – earliest boxing code – on this day in 1743
• A patent was granted to Leonard Greene of Mineola, New York, for an “aeroplane stall warning device” on this day in 1949
• Madonna is an American singer, songwriter, and actress born on this day in 1958

// Compiled by Zoya Siddiqui