Updated timelines

Changes in Leadership (Management)
Changes in Leadership (Management) timeline
Spiritual Tattoo's and their Meaning
Spiritual Tattoo's and their Meaning timeline
UPTC
UPTC timeline
Vietnam War
Honors Assignment#3
Honors Assignment#3 timeline
Cocinando, ando!
Cocinando, ando! timeline
Composers though out History
The Rise of Pop Art
Hawaii Imperialism Timeline
Hawaii Imperialism Timeline
Historical R&B Artist
Historia del Internet
Historia del Internet timeline
Ikejiofor_HRRP4
Ikejiofor_HRRP4 timeline
History of Basketball
A Piece of Civil Rights
A Piece of Civil Rights timeline
The Presidency of Jimmy Carter
The Presidency of Jimmy Carter timeline
HISTORIA DEL ADN
HISTORIA DEL ADN timeline