That, my friend, is a ponder-worthy question.
The building material that the Romans used was concrete.
"It demonstrates how people will live in the future" and "It helps us avoid repeating past mistakes" and "<span>It helps us understand different peoples and nations" are all correct, although the first option does not always work out very well!</span>
Answer:
The Gupta Empire was an ancient Indian empire existing from the mid-to-late 3rd century CE to 543 CE. At its zenith, from approximately 319 to 467 CE, it covered much of the Indian subcontinent.[4] This period is considered as the Golden Age of India by some historians.[5][note 1] The ruling dynasty of the empire was founded by the king Sri Gupta; the most notable rulers of the dynasty were Chandragupta I, Samudragupta, and Chandragupta II alias Vikramaditya. The 5th-century CE Sanskrit poet Kalidasa credits the Guptas with having conquered about twenty-one kingdoms, both in and outside India, including the kingdoms of Parasikas, the Hunas, the Kambojas, tribes located in the west and east Oxus valleys, the Kinnaras, Kiratas, and others.[7][non-primary source needed]
Gupta Empire