求 thanksgiving day 英文简介尤其关于起源的 最好30－50词左右 少点也行

Thanksgiving Day, legal holiday observed annually in the United States on the fourth Thursday of November. In Canada, Thanksgiving falls on the second Monday in October. Most people celebrate Thanksgiving by gathering with family or friends for a holiday feast. Thanksgiving was first celebrated by Pilgrims and Native Americans in colonial New England in the early 17th century. Its actual origin, however, probably traces to harvest festivals that have been traditional in many parts of the world since ancient times(see Festivals and Feasts). Today Thanksgiving is mainly a celebration of domestic life, centered on the home and family.

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第一段讲起源：The religious duty,and pleasure,of thanksgiving to God was well established in England before any English speakers came to America,but it was the American colonials who made a feast of i...