I think the answer is they were one of two civilizations to independently devise the concept of zero, from what i remember. but i'm not really sure.
Constitution? You didn't provide all the multiple choice possibilities.
Answer:
The National Origins Act restricted the number of immigrants from any given country to 2 percent of the number of current Americans from that country
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Explanation:
The Immigration Act of 1924, including the National Origins Act, was a federal law in the United States that restricted immigration from each country to 2% of the number from the same country that lived in the United States at the 1890 census, in instead of 3% as in the Immigration Restriction Act of 1921.
The law was mainly aimed at restricting immigration from southern Europe and eastern Europe, many Jews fled from persecution in Poland and Russia, and the wave of immigration had been going on since the 1890s, as well as from the Middle East, East Asia and India.
<span>It struggles with self sustainability and equality</span>
Answer:The American Revolution and the French Revolution
The American Revolution also showed the world that Enlightenment ideals could be put into action in creating a democratic government. Benjamin Franklin and other leaders of the American Revolution spent time in France and helped spread Enlightenment ideals.
Explanation: