Events relating to europe

Friedrich Engels, after running a textile factory in Manchester, publishes The Condition of the Working Class in England

Queen Victoria and Prince Albert follow the German custom of a family Christmas tree, immediately making it popular in Britain

The first Anglo-Sikh war ends with the Treaty of Lahore, by which Jammu and Kashmir are ceded to the British

The self-contained metal cartridge, with a percussion cap in its base, is patented by a Paris gunsmith named Houiller

British prime minister Robert Peel carries a bill to repeal the Corn Laws, splitting his own party in the process

The Irish, fleeing from the potato famine at home, become the main group of immigrants to the USA

Mary Anne Evans' translation from the German of David Friedrich Strauss's controversial Life of Jesus is published anonymously

Scottish obstetrician James Simpson uses anaesthetic (ether, and later in the year choloroform) to ease difficulty in childbirth

At a congress in London Engels persuades a group of radical Germans to adopt the name Communist League

English mathematician George Boole describes Boolean algebra in his pamphlet Mathematical Analysis of Logic

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