Updated timelines

The 1970s represented a decade of biggests.
1940-1949
Lifetime Project
Confederate Major Military Leaders, and their war achievments,
Confederate Major Military Leaders, and their war achievments, timeline
Life by Mason Marrs
FOLCLOR COLOMBIANO
FOLCLOR COLOMBIANO timeline
My Life
1950-1990
Trevor Reynolds Timeline
Trevor Reynolds Timeline
История числа Пи
История числа Пи timeline
Korean War
Korean War timeline
Wild Pandas
Wild Pandas timeline
Pittsburghs History
Pittsburghs History timeline
Pittsburgh history
Pittsburgh history timeline
Pittsburgh history
Pittsburgh history
Pittsburgh history timeline