I imagine isolation from China (Himalayans) had a part to play. And the monsoon season certainly effects their lives. I believe some of the rivers are holy as well as some mountains. Perhaps fertile soil in some parts do to conditions. Rivers can also be used for transportation, and that has effects on a civilization.
I imagine isolation from China (Himalayans) had a part to play. And the monsoon season certainly effects their lives. I believe some of the rivers are holy as well as some mountains. Perhaps fertile soil in some parts do to conditions. Rivers can also be used for transportation, and that has effects on a civilization.