Updated timelines

Vietnam War
Vietnam War timeline
1939-1940
Years of Crisis Timeline Project
Singapore 1950-59
Modern Age
modern age
Social Studies- Ryan Marques
Evolution of German tanks since WWI
Evolution of German tanks since WWI timeline
World War 2 Timeline
World War 2 Timeline
Refrescos mexicanos de 1940-2010
Refrescos mexicanos de 1940-2010 timeline
Ma Vie - Lauren Haub
Ma Vie - Lauren Haub timeline
civil right timeline
List of Historic Events from 1919 to 1939, Mike Martin
Historically significant events between the World Wars - J Colucci
World War II
Civil Rights Timeline