European Imperialism was a period of colonial expansion. It is the most important cause of WW1 because it built tension between the countries. It caused Tension between Nations and Countries. Was a cause of WW1 by separating from where they stand to form another empire away from their old empire, to avoid dictatorship.
The major problem with the articles of confederation was that it gave the states too much power.
Answer: B)
Christopher Columbus is the explorer who is credited for discovering America. Of course, there were already people living in America at the time who we call Native Americans. There even was a European, Leif Ericsson, who had been to the Americas before. However, it was Columbus' voyage that started the exploration and colonization of the Americas.
President Abraham Lincoln's Ten-Percent-Plan