Rosa parks wasn't killed by anybody, that was Abraham Lincoln, she died at age 92 and was diagnosed with progressive dementia, so that's how she died, hope this helps
German unrestricted submarine warfare ultimately resulted in the U.S. joining the Allies during WW1 in 1917. The use of submarines was a violation of U.S. neutrality, and it went back on the promise Germany made in the Sussex pledge.
Portuguese and Spain.
This era was known as the age of exploration.
