Updated timelines

1860-1877
APUSH
Assignment Schoology
Deborah's MET Journey
My Life
RFR -13 Timeline
The Labor Movement
Civil War and Reconstruction 1860-1877
World War 2
Oil Timeline
APUSH Timeline 1865-1900
IMAGINE - DREAM - 2020 Science Academy
WW2
History
World War II
Crusades and the fall of Constantinople in 1204