Updated timelines

Vietnam War
Vietnam War timeline
The History of IT
Timeline of My Life
Historia de los Materiales
Historia de los Materiales timeline
The history of ICT
Events in World War One
The History of ICT
The History of ICT
The History Of ICT
The Impact of ICT
IT HISTORY
The History Of ICT
The History of Technology
The History of ICT
The History of ICT By A.E.
The history of technology