Updated timelines

Chocolate
Chocolate timeline
Alyssa DeSimone Slavery
The Early 1800s
The Early 1800s timeline
The Great Depression
Fighting the American Revolution
Fighting the American Revolution timeline
Cody Ketter's Prenatal Development Timeline
Cody Ketter's Prenatal Development Timeline
Earth Space Science
Earth Space Science timeline
1800's in America
1800's in America timeline
Cartography History
Cartography History timeline
The Age of Democratic Reform and Activism
Earth & Space Science
Earth & Space Science timeline
North & Soth Korea
Emily Dicknson
Emily Dicknson timeline
Christine_Alice_Jennifer_celltheorytimeline
Christine_Alice_Jennifer_celltheorytimeline
rocio_yesenia_jerry_cellytheorytimeline
IC Launch timeline
IC Launch timeline