The Nullification Crisis was a sectional crisis in 1832–1833, around the time of when Andrew Jackson was president, which has involved a confrontation between South Carolina and the federal government.<span />
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The unsuccessful August 1991 coup against Gorbachev sealed the fate of the Soviet Union. Planned by hard-line Communists, the coup diminished Gorbachev's power and propelled Yeltsin and the democratic forces to the forefront of Soviet and Russian politics.
I would say a, before it was either by trade or pieces of gold, the access was less and it was not dynamic. however with paper money there are less impositions and it turned easier to buy and sell