Answer:
C. Gupta
Explanation:
It was developed by a mathematician in 498 CE :)
<span>They were Mongols who leveled cities, looted treasures, and massacred entire populations.
Hope it helps! :-)</span>
The Dorian invasion is a concept devised by historians of Ancient Greece to explain the replacement of pre-classical dialects and traditions in southern Greece by the ones that prevailed in Classical Greece. The latter were named Dorian by the ancient Greek writers, after the Dorians, the historical population that spoke them.
It would be "industrialization," that was a significant factor in both the german wars for unification and United States' Civil War, since Industrialization led to an irreconcilable economic split between two more major segments of each area.