The answer to this question would be “Beringia”.
Today, Beringia<span> is the land and marine area bordered on the west
by the Lena River; on the east by the Mackenzie River; on the north by 72
degrees north latitude in the Chukchi Sea; and on the south by the tip of the
Kamchatka Peninsula.</span>
- Psychoanalysis
- The role of sublimation
- Free association
In 1854, the controversial Kansas-Nebraska Act, split two
existing political parties the Whig party and Jacksonian Democrats and led to
the creation of the Republican party. Kansas-Nebraska act overturned the Missouri
compromise and allowed settlers to decide whether slavery would be allowed in
their state. This led to the creation of the Republican party founded by anti-slavers
whose primary objective was fighting slavery.
The last Muslim kingdom of Spain. It was seized by Ferdinand and Isabel being seen as one of the "problems" of 1492. Granada had a lot of Muslim influence (El Alhambra- a major region for trade and markets for European and luxury goods)
So Im guessing Europe
The powers of Congress are affected by all of these options except the "state constitutions", since the Constitution gives Congress final authority over the states in terms of legislation.