It takes thousands of years of religious thought, philosophizing, spiritual advancements, agriculture, political struggles, religious and political schisms and movements, scientific movements, trading activity, linguistics, wars, massacres, revolutions and industrial activity to create a major civilization.
Ruins of Nalanda University in Bihar
(Started in the Vedic Age, before 1200 BCE)
Every generation must exercise care, lest they become the “doomed generation” under whose watch the civilization gets wiped out. If people understood the history of their own civilization, they would, perhaps, do things differently.