The trail of tears was caused because the American settlers had been pressuring the federal government to remove Indians, mostly Cherokee and Chickasaw tribes, from the Southeast. Many settlers were settling on or around Indian lands, while others wanted more land to be available to European settlers. So, the correct answer would be A.
D. Berlin
On 20 April 1945, Hitler's 56th birthday, Soviet artillery of the 1st Belorussian Front began shelling Berlin and did not stop until the city surrendered.
No taxation without representation.
Answer:
the reform movement in Czechoslovakia in 1968- Prague Spring
the official American policy towards Communism during the Cold War- containment
an American spy plane was shot down over the Soviet Union in 1960- U-2 incident
an attempt to make China a classless society; led by the Red Guards- Cultural Revolution
a policy of political reform in the Soviet Union in the 1980s; literally "openness"- glasnost
Explanation: