It needs to be more specific
About 35 years. Genghis Khan created the Mongol empire in 1206. By the 1230s Batu Khan invaded Russian and Bulgarian lands. In 1241 at the battle of Mohi Batu Khan defeater a combined German, Polish and Hungarian army. Further expansion ceased do to the death of Ogedei Khan. Batu Khans attention was turned to succession instead of invading Western Europe.
FDR was elected president in 1932
Answer:
Imperialism
Explanation:
Increasing hostility between European countries led to the rise of Imperialism with invasion, colonization and annexation of African territory in the mid-1800s Europe indulged in imperialism. European countries began colonizing for three factors, political, economic, and social. The Berlin Conference in 1885 helped the European powers in the colonization of Africa.