What country or a group of countries are in a golden age?

u.s.a

china

india

and

japan

The Mauryan economy was very developed for its time. The existence of a stable centralized government and the unity of the sub-continent made by the emperor resulted in a fairly advanced trade. The Indian economy was a settled agricultural region. As it was the backbone of the economy, land revenue was the major source of income from the government.

Explanation: