What is the name of the system that keeps one branch of the federal government?

Journey stations were established throughout the mongol empire every miles.

How do economists measure the success, or shortcomings, of the economy?

In the years after world war ii, which of the following caused many people from asian and african countries to migrate to europe? a. the end of the soviet union b. new economic opportunities after colonialism ended c. the religious freedom found in europe d. new laws allowing greater numbers of immigrants into european countries