Updated timelines

WWI-WWII
U.S History
Explorations 1400-1700
Explorations 1400-1700
Eoxplorations 1400-1700
FCS
timeline of malife
Joseph Garner: U.S. History Formative Check
U.S. History Timeline
music history between 1925-1949
Historia de la Investigación Cualitativa
History of Computer Languages
musica
US history a timeline
WA History Honors Marshall
Key developments in the History of the microscope