The passage describes the story of the first Thanksgiving celebrated by the Pilgrims in America in 1620. It details their journey on the Mayflower, their difficult first winter where many became sick and died, and how the friendly Native Americans taught them how to plant corn and hunt turkeys. In the autumn, after the Pilgrims had harvested enough food for the winter, they held a three-day feast inviting the Native Americans to celebrate being thankful for the blessings they had received. This was considered the first Thanksgiving in America.