Answer: For most of the Middle Ages, the Roman Empire was unquestionably the most politically and militarily powerful country in all of Europe.
Explanation: I hope this is right
The Americans thought that the USS Maine was sunk by a Spanish mine. This incident lead to what we today know as the Spanish-American war of 1898.
At this time, there was a Spanish presence on Cuba as their government was trying to extinguish a Cuban resistance movement that wanted to liberate Cuba from Spanish rule.
Because the Americans thought their ship was sunk by the Spanish and because they were strongly in favour for Cuban independence, this lead to the aforementioned war.
President Reagan "sign" refers to the removal of barriers that divided East and West Berlin, Germany. In his speech made in West Berlin on 12th June 1987, the U.S President Ronald Reagan asked the leaders of Sovie Union to open up the barrier that divided East and West Berlin in his speech "Tear down this wall"
