Answer:
Sit-in movement. 1960 - 1961
Freedom Rides. May 4, 1961 - September 1961
March on Washington. August 28, 1963
Civil Rights Act. 1964
Watts Riots of 1965. August 11, 1965 - August 16, 1965
Loving v. Virginia. June 12, 1967
Poor People's Campaign. June 19, 1968.
Explanation:
City of Savannah, Georgia
I'm gonna say Parliament, at least historically. Monarchies are typically replaced with Parliaments, which work as more democratic governments.
The evidence that supports the idea the the Church functioned like a kingdom is the Pope, the leader of the worlwide Catholic Church, acted like a king with an official court that had diplomats and collected taxes.
The power of the pope was extended because the Church has its own court, tax system, and diplomats.
After the Crusades, the power of the popes were lessened while the power of the kings increased.