The answer should be tractor. The tractor wasn’t invented until the end of the 18th century by John Froelich. But the medieval period ended way before the 18th century, so it couldn’t have been used. The other options are older and most likely used during that period to increase crop production.
D. The conviction of Communist conspirators in the U.S. Army
Senator Joseph McCarthy really kicked up Communist suspicion in high places in the government and this scared people, but once he started accusing military figures of conspiring with Communist Americans knew he wasn't for real.
<span>The Spirit of the Laws, in which he argued for a constitutional government with three separate branches, each of which would have defined abilities to check the powers of the others. Simply so that no one branch had to much power. </span>
About 47,424 lost thier lives in vietnam.
