What protest did rosa parks ignite in 1957?

Montgomery Bus Boycott

Explanation:

It started because she refused to give up her seat at the front of the bus to a white passenger.

bless you your highness

one of the main reasons was definitely slavery. back in 1861, republican abraham lincoln was elected and ended up being a major influence in the slavery business. slavery greatly affected the texas economy because back in 1845 during the annexation of texas, slaves became a big part of the texas population. many texans that were in favor of the secession influenced groups through party ties.