The events that led to the Montgomery bus boycott were set in motion . when Martin Luther King, Jr., called for the boycott when Rosa Parks refused to give up her seat on a bus before the Supreme Court handed down Brown v. Board of Education after Congress passed the Civil Rights Act of 1957

1955 is the answer

Explanation:

Rosa Parks led the 1955 Montgomery bus boycott when she refused to give up her seat on a bus and was arrested. During that time, the law requires “blacks” to enter the bus from the back, but Parks refuse to enter from the back door. Her action led to Montgomery bus boycott.

"a government in which power is divided between state and national levels". federalism is a system of government in which entities such and state and province, share power with the national government.

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