Updated timelines

Development of the Steamboat 1787-1900
Development of the Steamboat 1787-1900 timeline
U.S History Important Dates
History of the Internet
History of the Internet timeline
Partie 1 - L'Europe et le monde au XVIII°s
Partie 1 - L'Europe et le monde au XVIII°s timeline
The Shot Heard Round the World: Events Leading up to the Revolutionary War
The Shot Heard Round the World: Events Leading up to the Revolutionary War timeline
Парусники
Парусники timeline
My World Timeline
OGHS Hannah and Sammy
WWII
WWII timeline
פיגוע התאבדות
Computer History TImeline
Computer History TImeline timeline
America the story of Us: Episode 1: Rebels
America the story of Us: Episode 1: Rebels timeline
Angel Island, Immigrant "B"
Angel Island, Immigrant "B" timeline
My life as a Chinese immigrant
My life as a Chinese immigrant timeline
History Timeline
Computers, Cody Jensen
Computers, Cody Jensen timeline