Looking forward to the past: London Underground's 150th anniversary.

The article discusses the 150th anniversary of the London Underground (LU) transit system in London, England, which opened in 1863 as the Metropolitan Railway, or the "Met." It comments on commemorations of the system's 50th and 100th anniversaries. Events to mark the 150th anniversary considered include the exhibition of underground trains and posters and various academic events and publications. Traumatic events associated with the LU, including its use for public air raid shelters during World War II and the July 2005 terrorist attacks, are also considered.