(Automatic Voting Machine Co/PhotoQuest/Getty Images)A hand as it inserts a ballot into a box during the U.S. presidential election in Lancaster, Pennsylvania, Nov. 2, 1948. (PhotoQuest/Getty Images)An over-the-shoulder view of an unidentified woman as she demonstrates how to use an IBM voting machine in 1966. The voter casts a ballot by punching holes in a card, which then drops into a ballot box. (Getty Images)A hand presses the switch, marking a selection in a 1970s-style voting machine. (Getty Images)A view showing empty voting booths during the Senate elections in 1986.

We thought it would be interesting to take a look back and see what life looked like as the polio vaccine was introduced and then how things progressed as the science continued to advance and develop. Wellbee's first assignment was to sponsor the Sabin Type II oral polio vaccine campaigns across the United States. (Getty Images)An original caption from April 23, 1955: First- and second-graders at the Kit Carson School line up for Salk Polio vaccine shots. San Diego was the first community in the United States to start this spring's mass inoculation with the serum. (Getty Images)The Alabama National Guard prepares to fly the polio vaccine from Birmingham during the epidemic of 1963.