The first day, between 20 and 30 men explored the site but then they came under attack by Indians at dusk. The people of Jamestown found there were many problems to their colony. The water was bad for drinking. Many insects lived around the swampy land. The insects gave the people who lived there diseases. The leader, Captain John Smith, made the rules for the men. One of the rules was, "You don't work, you don´t eat." The settlers traded with the Powhatan Indians. They gave the Powhatans tools, pots, and knives, in return for corn and vegetables. 