Ignorant westerner curious what do you think made Ancient India so ripe to create Hinduism?

I am fascinated with the fact out of Hinduism came things like meditation, the vegetarian diet, the phenomena of a kundalini awakening, the three gunas, and more. I wish I could travel back in time to meet the original enlightened authors and know why or how did these people manage to create this and not some other part of the world. Why did not other parts of the world create this? What so special about the culture and the personalities at the time? As well as why don't you see such wisdom applied across the entire nation. There is no Hinduism where I come from but to me it seems like a dramatically different experience when you tell people you can get enlightenment in this life vs get heaven when you die. Seems more people would try to be truly religious.