Original sentence: For example, Birmingham's medieval history was commemorated by the placement of a set of memorial arches in the suburb of Highgate, which reflect upon the foundation of the city and upon modern Highgate's local identity
Edited sentence: For example, Birmingham's medieval history was commemorated by the placement of a set of memorial arches in the suburb of Highgate in 2002 , which reflect upon the foundation of the city and upon modern Highgate's local identity