The stuff confiscated/plundered/looted/stolen in war is called the "Spoils" of war.
His goal was to expand his empire and gain more prestige among nations
Someone who runs a successful business but has some robber Barron qualities. A robber Barron will do anything to get to the top
O C. They developed some of the math used today
B. Cultural practiced of language and religion changed.
Assuming this is in regards to the Aryans and the Indus Valley civilizations. Aryans introduced early Hindu ideas and writings, as well as developed the earliest forms of Sanskrit.