Lead: Throughout history there have been large human migrations, during which there were often winners and losers. In seventeenth century Virginia, the big losers were Native Americans.

Intro.: A Moment in Time with Dan Roberts.

Content: Mass migration happens for a variety of reasons. Economic greed or economic opportunity, imperialism, ideology or religion, hunger, disease, climate change, or any number of reasons, can cause a large number of people to leave their homes and move to a new place. If the numbers favor the immigrants, the old society is swamped and many may die.