Answer:
Stars
Explanation:
I think back then that ancient civilizations trusted the night sky or more advanced ones used compasses before maps were made and trusted. The Mayans I believe practiced astrology (astronomy?) and we still do know because the sky is always there for us.
Why would India's location and rivers be beneficial to farmers? Natural resources, rice, farming and crops etc. ... What pro/cons would climate pose to people living in southern India? Risk of monsoon/good crop irrigation??
I do not believe that a strong nation should be able to boss around weaker nations. This is just wrong in that a nation should be free to decide what it wants to do. A strong nation can assist them in developing. How ever they should not rule them. At that point that weaker nation will be stripped by of their sovereignty. This is not that times of Empires.