According to historical accounts and research, Thanksgiving Day is a national holiday in the United States and Canada that has its roots in the celebration held by the early settlers of Plymouth Colony in 1621. This three-day feast was attended by both Pilgrims and Native American Wampanoag people, and has since become a symbol of gratitude and blessings for the past year. However, some sources cite 1637 as the true origin of Thanksgiving, when Massachusetts Bay Colony's governor declared a day of thanks. In 1978, a song titled "Give Thanks" was composed by Henry Smith during a time of unemployment and uncertainty, and has become a popular song associated with Thanksgiving. The peace and collaboration between the Pilgrims and Wampanoag tribe was not easily achieved, with the feast being less widely known as a result.