East Dulwich:

• is a classic example of a laste Victorian suburb
• had a cinema between 1938 and 1972 (the building was demolished in 2003)
• was bombed heavily in World War II during the Blitz and by V1 and V2 flying bombs
• had electric trams until 1952
• was originally in the county of Surrey and in 1965 became part of the new borough of Southwark
• was gentrified in the 1990s!

according to this timeline on southlondonguide.co.uk.