3 July – Charles Babbage publishes a proposal for a "difference engine", a mechanical forerunner of the modern computer for calculating logarithms and trigonometric functions. Construction of an operational version will proceed under Government sponsorship 1823–32 but it will never be completed.[3]
8 July – The Chippewa turn over a huge tract of land in Ontario to the British.[4]
19 July – Percy Jocelyn, Anglican Bishop of Clogher, is caught in a compromising position with a young Grenadier Guardsman at a public house in London. He breaks bail and flees England. In October, an ecclesiastical court deprives him of office.[5]
↑ Jones, Helen (2005). "Mary Colton (1822–1898)". Australian Dictionary of Biography. National Centre of Biography at the Australian National University. Retrieved 25 October 2025.
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