What are the achievements and innovations created in the gupta golden age?

This period is called the Golden Age of India and was marked by extensive inventions and discoveriesin science, technology, engineering, art, dialectic,literature, logic, mathematics, astronomy, religion, and philosophy that crystallized the elements of what is generally known as Hindu culture.

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the language dates from the contacts of arabian traders with the inhabitants of the east coast of africa over many centuries. under arab influence, swahili originated as a lingua franca used by several closely related bantu-speaking tribal groups.