Updated timelines

History of Social Media
Programming Languages
Social Media Timeline
Life timeline
Desarrollo Humano
LA MUERTE DE JAIME VALBUENA
Patsy T. Mink
Política Comparada
The Trail Of Tears
1. Context for a new century(pre-1900)
Israeli-Palestine conflict
Pirate Timeline
Historia de la psicologia
Emo
Israeli-Palestinian Conflict
My Life