Updated timelines

Social Networking
Social Networking timeline
Imperialism
Imperialism timeline
American Revolution
American Revolution timeline
Pacific War
Pacific War
Pacific War
Pacific War
Pacific War
Queen Elizabeth II
Queen Elizabeth II timeline
Pacific War
World War II
The Progressie Era
Texas Revolution
American Revolution - Y.Zbib.Period 6 ♥
American Revolution - Y.Zbib.Period 6 ♥ timeline
American Revolution
American Revolution timeline
Progressive Era