What direction did the ancient people travel when they crossed the land bridge?

Why did leaders such as siddhartha gautama abandon hinduism to createbuddhism around 500 bce:

10. how were the mycenaeans and the minoans similar? they did not enslave anyone or tolerate slavery in any form. they had an organized and strong central government. they designed and built heavily fortified settlements. they reigned and traded in and around the aegean sea.

Which character are always present in all living organisms