Why were westerners unable to travel by land from europe to asia in the 14th century

Which statement describes the middle passage

How did roosevelt corollary and dollar diplomacy affect u.s. relations with other countries?

Which statement best summarizes the colonial system belgium created in the congo free state? o a. belgians relied on threats and brutal violence to force natives to work on rubber plantations, o b. belgians encouraged mass immigration from europe to force natives from their lands. o c. belgians improve local economies but stripped natives of their political rights. d. belgians offered natives political equality only if they gave up their traditional beliefs