Answer:
Sociology, Anthropology, Philosophy and English/Literature
Explanation: Searched it up
I would say that the stirrup allowed for quicker mounting of the horse, and it may have caused horses to be used in battle more frequently.
Answer:
Mercantilism was an economic system of trade that spanned from the 16th century to the 18th century. Mercantilism was based on the idea that a nation's wealth and power were best served by increasing exports and so involved increasing trade.
Explanation:
Because the brain s so big and in so many ways unable to explain all the phenomena that occur. And unlike physical problems, psychologicalis often impossible to have in emotion and undoubtedly impossible to observe.