<u>The communities were quakers and anglo-jews.</u> There's an research titled: <em>Quakers, Jews, and Science: Religious Responses to Modernity and the Sciences in Britain, 1650-1900.</em>
This talks about the interest of these communities in science, as you can see, it's developed in Britain.
The Indus river was a constant flow of natural resources. The river also made the soil very fertile and that meant good crops when planted in the right season, it also made it easy for trade boats to pass through.
