Updated timelines

World War 2 Timeline
Revolutionary War Timeline
Cold War and Conflict Timeline
Cold War and Conflict Timeline
Revolution Timeline
Canadian History
Oregon Trail
Early Medieval Animal Art
Westward Expansion
Westward Expansion timeline
Road to Revolution-annemrachelk
Road to Revolution
朱雯婷
朱雯婷 timeline
Oregon trail
Road to Revolution - Leah Morin & Allie Hansen
America's cup history
America's cup history timeline
Pioneers
Pioneers timeline
Oregon Trail
Oregon Trail timeline