In 1954, the American scientist Jonas Salk developed a vaccine for the prevention of
A. polio.
B. tuberculosis.
C. influenza.
D. typhoid.
E. yellow fever.
Answer: A
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Grain shortages in the Soviet Union in 1928–1929 were the result of ________
A. the hoarding of grain B. population increases C. crop failures D. collectivization
The one part of Alexander Hamilton's economic program that Thomas Jefferson endorsed was ________
Fill in the blank(s) with correct word
The guiding principle of the Congress System proposed by Tsar Alexander I was termed the
a. Union of Equals. b. League of Europe. c. Quadruple Alliance. d. Christian Coalition. e. Holy Alliance.
Who was the German artist in Romanticism who painted stark landscapes to express God in nature?
a. Conrad von Hearst. b. Eugene Delacroix. c. Francisco Goya d. Caspar David Friedrich e. Johannes Kepler