Historic Timeline
- 1666 - Great Fire of London
- 1831 - Became world's largest city
- 1836 - First London railroad constructed
- 1863 - London Underground subway system began
- 1888 - County of London established
- 1900 - County of London divided into 28 boroughs
- 1925 - Lost status as world's largest city
- 1930s - Large numbers of Jewish immigrants arrived
- 1950s - Large numbers of Commonwealth immigrants began to arrive
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