Answer:
Nullification, in United States constitutional history, is a legal theory that a state has the right to nullify, or invalidate, any federal law which that state has deemed unconstitutional with respect to the United States Constitution
Explanation:
The fall of Constantinople
Answer:
Roads were a way to extend Roman military and economic power; they made the movement of both soldiers and goods easier and faster. ... The Romans also engaged in trade across the Mediterranean Sea.
Explanation:
The answer is d) The US and USSR
The Sino-Soviet Split was a pivotal historical event which took place over the course of a few years between 1956-1966.
The post-Stalinist Soviet Union diverged from China's own communist, Marxist and Leninist views.
The split was followed by an economic agreement between the United States and the USSR.
However, the effects of this split were felt far and wide all over the world and for many years to come.
In the next decade, China took steps to officially open to the United States with Nixon's state visit to the country.
they spread by the spaniards conquring many places