Answer:
some empires inveneted things that we dont no about that could be useful
Explanation
when the roman empire fell medical books where burnt and thoose medicines could be still uncovered by us. so by studying them we might be able to discover inventions and discoveries that they made.
The wright brothers- 1903
Thomas edison-1879
The answer is Marshall Plan
Weapons in WW1 were being mass produced and of a greater quality than those of wars before. Barbed wire, airplanes, poisonous gas, submarines etc were introduced which revolutionized war today. Trench warfare was countered and is no longer used to fight.
Answer:
"The 1800 election result revealed a serious flaw in the U.S. Constitution, which said that candidates for president and vice president ran on the same ballot, which meant running mates could be running against each other. The 12th Amendment, which changed the Constitution to prevent the 1800 election problem from recurring..."
Explanation:
The Controversial Election of Thomas Jefferson in 1800
