What is the cause for the Fugitive Slave Act?

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Following increased pressure from Southern politicians, Congress passed a revised Fugitive Slave Act in 1850. Part of Henry Clay's famed Compromise of 1850—a group of bills that helped quiet early calls for Southern secession—this new law forcibly compelled citizens to assist in the capture of runaways.

There were a few ideas that were common in plymouth colony but not in massachusetts bay colony. one was religious intolerance. another was representative government.