What event is regarded by historians as the event that triggered World War I into actually beginning and forcing countries into alliances united against each other?

Brainliesttt asap!me : ) answer in your own words. what was the relationship between medieval theories about scientific reasoning and the kind of reasoning favored during the scientific revolution?

Brainliestt asap!me : ) describe the difference : capitalism vs. communism

Which statement is true of both presidential and parliamentary systems of government?