1982 Diana, Princess of Wales, gave birth to a boy, (Prince William) sixteen hours after checking in to St Mary's Hospital, in London.
1791 Birth of Ordinance Survey, when the Board of Ordinance was instructed to accurately survey the south coast, fearing French invasion.
1471 King Edward IV enters London
1908 First large suffragette rally, in London.
1553 English Lady Jane Grey marries Guildford Dudley