It benefited the elderly people after retirement.
Answer:
<h3>The proposed 26th Amendment passed the House and Senate in the spring of 1971 and was ratified by the states on July 1, 1971.</h3>
Responding to xenophobic concerns, Congress passed an emergency law restricting immigration in 1921. Among other provisions, the Act established a quota (a proportional share of a total) for nationalities on the basis of their numbers in the U.S. in 1910.
The missing detail is: a quota.
The Aztec Empire is located in Mexico so I believe it would be number 3
Despite its importance in the integration process, little work has been done on the economic effects of naturalization in the United States.
