The Gadsden Purchase was a treaty signed by James Gadsden, the U.S. Minister to Mexico, and General Antonio de Santa Anna, the president of Mexico on December 30, 1853 in Mexico City. It was an Agreement between the United States and Mexico to give a 29,670 square mile portion of Mexico in exchange for $10 million.
The opium war. it lasts from 1839-1842 and resulted in a british win and the treaty of nanjing which made china suffer a big L since britian had free access to trade, reduced tarrifs, control on hong kong, and made china pay for the war
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The answer is 3. All these answers are correct.
Practical radio communication was furthered by enthusiasts who were experimenting with Hertz and Maxwell's findings.
By the theory of modulation because it helped establish the earliest method to transmit voice by radio.
By the use of vacuum tubes because they made detection and amplification of radio signals possible.
So, all of these 3 factors furthered the development of practical radio communication.
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The 1968 assassination of Robert KennedyA.robbed anti-war Americans of their leading candidate.
B.finally brought about an end to the Vietnam War.
C.left Richard Nixon as the Democratic presidential candidate.
D.caused the Democrats to cancel their national convention.
Answer:A <span>robbed anti-war Americans of their leading candidate.</span>
I believe it was the defense the Chinese were implementing, from fear of the Moguls invading. So the Great was in place being built and the Government closed off trade and travel so no more boats were built.