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Contributors in World history
World history
National Aeronautical and Space Administration (NASA)
History; World history
American space agency responsible for administrating the United States space program.
allied powers
History; World history
Alliance of Great Britain, Soviet Union, United States, and France during World War II.
appeasement
History; World history
The policy of pacifying an aggressive nation in the hopes of avoiding further conflict.
arch
History; World history
A curved structure that shapes the edge of an open space, such as, a doorway, a window.
militarism
History; World history
Political policy that is dominated by the military and the competitive buildup of arms.
Triple Alliance
History; World history
An alliance that was made up of Germany, Austria-Hungary, and Italy during World War I.
aqueducts
History; World history
Above ground structures used to carry water long distances. Built by the ancient Romans.