Answer:Emergency Quota Law of 1921
In 1921, there was a drastic reduction in immigration levels from other countries, principally Southern and Eastern Europe.
Explanation:
Long title An Act to limit the immigration of aliens into the United States.
Nicknames Per Centum Limit Act
Enacted by the 67th United States Congress
Effective May 19, 1921
* they both believed in a revolution to help their country
* the assassination of Jean-Paul Marat
* both started by radicals
December 14, 1799 monsieur
<em>The answer is</em> The Great Retreat
<em>I hope this helps </em>