Answer:
geography and transportation
Explanation:
Answer:
columbian exchange
Explanation:
The Columbian exchange, also known as the Columbian interchange, named for Christopher Columbus, was the widespread transfer of plants, animals, culture, human populations, technology, diseases, and ideas between the Americas, West Africa, and the Old World in the 15th and 16th centuries.
It would be Austria-Hungary’s imperialist ambitions to dominate the Balkans, as they couldn’t possibly stay a united country as there was many different languages and cultures which led to struggles for independence which led to the assassination of Archduke Franz Ferdinand by a Serbian terrorist organization
Fighting in Vietnam started in 1954 when technically France tried to reassert its colonial claims to Indochina, although Japan had claims as well. It was primarily a colonial beginning.
Lots of civil wars and the invasions of barbarians like the huns and other tribes brought down the empire since the senator could not get along and refused to fix the problem.