Articles

ERA 7: The Emergence of Modern America (1890–1930)
ERA 6: The Development of the Industrial United States (1870-1900)
ERA 8: The Great Depression and World War II (1929–1945)
ERA 10: Contemporary United States (1968 to the present)
ERA 9: Postwar United States (1945 to early 1970's)

Historical Documents

Patsy Murr, first grader at Fulton School in Lancaster, Pa., gets her Salk shot from Dr. Norman E. Snyder as she is held by Mrs. Walter Sourweine, April 25, 1955. Others view the proceedings with mixed emotions
ERA 9: Postwar United States (1945 to early 1970's)
Alliance for Progress Postage
ERA 9: Postwar United States (1945 to early 1970's)