Updated timelines

Hannah's Timeline of technology
Technology Changes in My Life
Origins of the Cold War
Cold War Timeline
Events Leading Up to the American Declaration of Independence
PERSONAL
Gilded Age Timeline Activity
Oprah Winfrey
Heugh Douglas & Fannie J. (Tomlinson) Dibble
John Davis & Phebe (Chase) Dibble
Ole Anton & Annie Mayme (Steichen) Hagen
Revolutionary War
Magnus George Hagen
Roe v. Wade Timeline
Time line
Western civilization - New social classes