That's certainly my understanding. I seem to remember from an Intro to Hinduism class that when the "Aryans" arrived in the Indus Valley, the first thing they d

That's certainly my understanding. I seem to remember from an Intro to Hinduism class that when the "Aryans" arrived in the Indus Valley, the first thing they did was burn down a bunch of the forests, because the charred mulch made the soil more fertile for growing crops.