Updated timelines

WWII 1939-1945
Sectionalism and Slavery
Sectionalism and Slavery timeline
Mary Margret
Samuel Adams
History of Distance Education
History of Distance Education timeline
A Brief Overview of 1990-2000!
A Brief Overview of 1990-2000! timeline
Key Revolutionary Events
Key Revolutionary Events timeline
BIOGRAFIA
BIOGRAFIA timeline
Isaac Newton
Isaac Newton timeline
Important Events in the American Revolution
Important Events in the American Revolution timeline
Lindsey's timeline
Lindsey's timeline
King Tut Discoveries
King Tut Discoveries timeline
Pre American Revolution
Linea de Tiempo de las Redes Informáticas
Linea de Tiempo de las Redes Informáticas timeline
Olaudah Equiano by Socratis Zavitsanos
The Civil War Timeline