Events: 1843: Thames tunnel opens 1869: Thames tunnel expands and becomes part of the metropolitan railway 1987: DLR opens 1990: east London railway 1991: DLR branch to bank opens 1994: DLR branch to beckton opens 1999: DLR extension to lewisham 2005: DLR branch to King George V 2007: London overground; shoreditch gets replaced with shoreditch high street 2009: DLR extension to woolwich arsenal 2010: overground extension to dalston junction and west Croydon; branch to crystal palace opens 2011: DLR branch to Stratford international 2012: overground extension to highbury & islington and branch to clapham junction 2015: TfL rail opens 2018: TfL rail mainline between Paddington and Heathrow terminal 5 2019: TfL rail branch to reading 2022: Elizabeth line 2024: Windrush line