Connecticut authorities started to pass laws which destabilized the institution during the Revolution. In 1774, the General Assembly prohibited to bring new slaves into Connecticut. In 1777, the Assembly made it easier for owners to free their slaves. This law provided a formal process by which the local Board of Selectmen would interview both slave owner and slave to determine the fitness of the slave to be self-supportive and the desire of the individual to be free. The process usually resulted in release from the bonds of slavery. The Assembly also passed a law acknowledging the slave owners' authority to allow their adult male slaves to join the militia or the Continental Army. Their military service could be rewarded with manumission. A number of whites in Connecticut were beginning to accept the possibility that their black countrymen might live in the state as other than an enslaved people. Another important bill was also presented by New Jersey Governor David Cooper and Bill was passed the bill on March 2, 1786 which banned foreign slave trades in the state (Hodges 1997). Later, more and more laws were passed to protect from slave trade that toughened penalties on slaves' catchers. Thus, these new laws created disruptions for enslaving which helped to changed African lives.
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Due to the Revolution, more states gradually began to take actions to abolish slavery. This action is also effective way for slaves because it allows abolishing slavery within the state. Northern states started to create their own laws to abolish slavery. Under both the Articles of Confederation, which had united the colonies during the Revolution, and the Constitution which joined the new states after 1787, the national government didn't have authorities to end slavery in any of the states (Hodges 1997). However, none of the states in south of Maryland chose to end slavery because having slave can bring more profit for the slave owners.