Updated timelines

DNA Contribution
Línea del tiempo
American Revolution
Time line of SLA Theories (Content taken from http://www.sil.org/sites/default/files/files/theor...
Historia de la UP
Life of Frederick Douglass
WWI-Great Depression-WWII
History of Drawing by Eddie Ruiz
Career Timline
Trail of Death
World War One timeline
Family
L`impero Romano
Egizi
The Gilded Age
era de hierro