A main cause of the trade was the colonies that European countries were starting to develop. In America, for instance, which was a colony of England, there was a demand for many labourers for the sugar, tobacco and cotton plantations. Paid labourers were too expensive, and the indigenous people had largely been wiped out by disease and conflict, so the colonisers turned to Africa to provide cheap labour in the form of slaves.
Answer:
Explanation: 1) Stalin became the dictator of the USSR.-late 1920's
2) Khrushchev became the general Secretary - September 1953
3) De-Stalinization began- 1953 after Khrushchev achieved power
3) Sputnik was launched- May 1957
4 Yuri Gagarin became the first man in space-April 12, 1961
Francisco de Xeres, secretary to Conquistador Pizarro, 1547
