Articles

ERA 3: Revolution and the New Nation (1754–1820s)
ERA 10: Contemporary United States (1968 to the present)
ERA 7: The Emergence of Modern America (1890–1930)
ERA 10: Contemporary United States (1968 to the present)
ERA 4: Expansion and Reform (1801-1861)
ERA 10: Contemporary United States (1968 to the present)
ERA 4: Expansion and Reform (1801-1861)
ERA 10: Contemporary United States (1968 to the present)

Historical Images

Reported polio cases and deaths, United States, 1910 to 2022
ERA 9: Postwar United States (1945 to early 1970's), ERA 10: Contemporary United States (1968 to the present)

Historical Documents

Sylvia Mendez, one of the children at the center of this case.
ERA 9: Postwar United States (1945 to early 1970's)