Updated timelines

WWII
Progressive Reform Era
World War I
Samuel F.B. Morse by Chris Cohn
Samuel F.B. Morse by Chris Cohn timeline
Preevolucionistas
WW1
WWI
WWII
Great Depression
The Great Depression
The Great Depression timeline
WW1
Roaring 20'S
Roaring 20'S timeline
Road to Revolution
Ronnell Clark Timeline
Teoría de la Evolución
History of Batteries
History of Batteries timeline