 Gupta Indians traded salt, cloth, and Iron with China, Southeast Asia, and the Mediterranean.

 It taught people to do their duty even when it was painful.

Some of the first uses Algebra Developed the concept of and symbol for zero Contributions Explained the concept of Infinity Invented Algorithms Invented the symbols for 1-9

 His improvements were for the overall good. He built hospitals, roads, and rest stops for travelers; sent missionaries throughout India and Asia; carved Buddhist principles on pillars; Built stupas; and practiced religious tolerance.

 Answers May Vary

 This made it easier to keep track of transaction, also to be able to explain amounts of product traded and to see how much money was made