Answer:
The idea that humans evolved in Africa can be traced to Charles Darwin. In his 1871 book The Descent of Man, Darwin speculated that it was “probable” that Africa was the cradle of humans because our two closest living relatives—chimpanzees and gorillas—live there.
Explanation:
During the 1920s the red scare the trial of Sacco and Vanzetti and the rise of nativism were all sign of "paranoia" and "anti-radicalism," since these had to do with finding and persecuting communists.
Marco Polo traveled during the middle ages (AP period 3), for this the communication technology was not very advanced and Western Europe didn't really know the situation of East Asia and vice versa. When Marco Polo explained his travels to the Europeans of the greatness of China many Europeans decided to go and see for themselves if this greatness was indeed true. When the Europeans arrived in China they were very impressed and a new promotion of travel to China emerged, INCREASING China's economy.
Answer:
Twenty-sixth Amendment, amendment (1971) to the Constitution of the United States that extended voting rights (suffrage) to citizens aged 18 years or older. Traditionally, the voting age in most states was 21, though in the 1950s Pres. Dwight D. Eisenhower signaled his support for lowering it. Attempts to establish a national standardized voting age, however, were met with opposition from the states. In 1970 Pres. Richard M. Nixon signed an extension of the Voting Rights Act (1965), which lowered the age of eligibility to vote in all federal and state elections to 18. (Nixon himself was skeptical of the constitutionality of this provision.) Two states (Oregon and Texas) filed suit, claiming that the law violated the reserve powers of the states to set their own voting-age requirements, and in Oregon v. Mitchell (1970) the U.S. Supreme Court upheld this claim.
In response to this setback, and in particular spurred by student activism during the Vietnam War and the fact that 18-year-olds could be drafted to fight in the war but could not vote in federal elections in most states, an amendment was introduced in the U.S. Congress. It won congressional backing on March 23, 1971, and was ratified by the states on July 1, 1971—marking the shortest interval between Congressional approval and ratification of an amendment in U.S. history. The administrator of general services officially certified ratification of the Twenty-sixth Amendment on July 5.
Explanation:
