What is one act that the ming dynasty put into effect?

The Ming Dynasty ruled China from 1368 to 1644 A.D., during this time China's population would increase drastically, nearly doubling. Known for its trade expansion to the outside world that created cultural ties in the West, the Ming Dynasty is also remembered for its drama, literature and world-renowned porcelain.

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saint clair’s defeat, (november 4, 1791), one of the worst defeats ever suffered by u.s. forces in indian warfare, precipitated by british-indian confrontation with settlers and militia in the northwest territory following the american revolution. despite specific provisions in the treaty of 1783 for the evacuation of its forts on the northwestern border, britain had failed to yield these lucrative fur-trading posts. in hopes of reclaiming lost hunting grounds with british support, a northwest indian confederation was gradually molded between 1785 and 1787, consisting mainly of shawnee, delaware, ottawa, iroquois, ojibwa, miami, and potawatomi. kentucky frontiersmen reacted to this threat by initiating raiding parties on native villages as early as 1788, and indian warfare flared up the following year.

is this a multiple choice question? if so, could i see the answers to give you the right one!