In 1907, the city of Seattle annexed the municipalities of West Seattle, Ballard, South Park, Southeast Seattle, and Columbia City as well as Ravenna Park and vicinity and unincorporated southeast neighborhoods, thereby doubling its land area amid a dramatic surge in population.

These and several other landmark events are recapped in a series of eight large exhibit panels produced by HistoryLink in partnership with Seattle Municipal Archives for the Mayor's Office of Arts and Cultural Affairs.

The exhibit panels can be viewed online at HistoryLink.org. Street banners were hung throughout Seattle neighborhoods in 2007 to commemorate the centennial of their annexations.