Spain colonized America because they were searching for gold and silver. They did find a lot of gold and silver when they conquered the Aztec and Inca Empires. France colonized North America because of the great amount of furs they found there.
Ronald Reagan and Mikhail Gorbachev worked together to improve the relations between the US and USSR.
Gorbachev's policies surrounding Glasnost allowed for a more democratic Russia (and also eventually led to the collapse of the Soviets).
<span>Europeans caused populations to decline severely in both places</span>