11. Soviet youth camp, 1937.
12. A Soviet technician checks water taken from a stream near Kiev for radiation after the Chernobyl incident on 9 May 1986.
13. Soldiers (who were interrupted during rehearsals for a drag show by an air raid) manning anti-aircraft guns at the Royal Artillery Coastal Defence Battery at Shornemead Fort, Kent, England, 1940.
14. A chef in Budapest, 1960.
15. William Hutchings, age 100, one of the oldest surviving American Revolutionary War veterans, photographed 1864.
16. A gold miner during the California Gold Rush, 1848.
17. Finnish soldier with a reindeer in Lapland during the Continuation War, 1944.
18. Construction worker during the construction of the Trbovlje Powerplant Chimney in Trbovlje, Slovenia, 1975.
Photo was taken by Svetozar Busić.
19. Slave sales and auction, Atlanta, Georgia, 1864.
20. President Reagan standing with President Gorbachev of the Soviet Union in the White House Library, 1987.