July 4 1776. hope I helped!
I think that maybe people are saying different answers because there might have been many such laws. I will mention one example: the Diversity Visa Immigration: it means that people from Eastern Europe have a higher change of obtaining a visa due to a smaller population in the US than the western European Countries.
<span>On January 25, 1787, Daniel Shays and his insurrectionists confronted a Massachusetts state militia force outside the Springfield armory. Shays’ Rebellion had begun in the summer of 1786, when Shays, a former Continental Army captain, and other western Massachusetts veterans and farmers formed an insurrection against the government for failing to address their economic grievances. Upon the confrontation at the Springfield armory, the state militia forced Shays and his followers to retreat to Worcester County, where they would be dispersed on February 4, leading to the end of the rebellion.</span>