- 3 July
- 1871 – District Railway extends from Blackfriars to Mansion House.
- 1932 – District line services end between Ealing Common and South Harrow.
- 1933 – Great Chertsey Road (A316), Twickenham Bridge, Chiswick Bridge and the fourth Hampton Court Bridge over the River Thames open.
- 1939 – Northern line extends from Archway to East Finchley.
- 1968 – A crash of a BKS Air Transport cargo plane landing at Heathrow Airport kills 6 people and 8 race horses and damages 3 planes on the ground.
- 2000 – Transport for London replaces London Regional Transport.