Updated timelines

Milestones in Mathematics
Milestones in Mathematics timeline
History of Robots
History of Robotics
Three Events of 1800's
Robot timeline
History of Robotics
History of Robotics timeline
Events Leading Up to the Revolutionary War
Наполеоновские войны
evolucion de las computadoras
Germany Unification
Why the Colonies Broke Away
1990's
1990's timeline
German Unification
German Unification timeline
German Unification
German Unification timeline
The Legend of Zelda
Italy