Final answer:
The Pilgrims celebrated their first successful harvest and survival in an unfamiliar land by holding a feast known as the first Thanksgiving. They were joined by Indians who brought gifts of deer, and everyone enjoyed a plentiful feast and gave thanks.
Step-by-step explanation:
The Pilgrims celebrated their first successful harvest and their survival in an unfamiliar land by holding a feast known as the first Thanksgiving. In September or October 1621, after the Pilgrims had harvested a large number of ducks, geese, and crops, they were joined by about one hundred Indians, including Massasoit, who brought five deer as gifts. They feasted on venison, fish, fowl, and beer, enjoying the abundance of food and giving thanks for their survival. The participants ate with their fingers and sat on the ground, as utensils were not used during the feast.