Some historians suggest that as a result of the mongol invasions of russia

Why hadn’t europeans used maritime routes before the age of exploration?

Explain the importance of president harry truman's order to integrate the u.s. military and the federal government.

How has u.s. participation in international economic development efforts affected other countries? o a. it has made some countries decide they no longer want close ties with the united states. b. it has ended diplomatic ties with countries that refuse to participate. c. it has raised money to poor nations grow their economies. d. it has caused the united states to intervene militarily to stop human rights abuses.