what is thanksgiving day?

Thanksgiving (Thanksgiving Day),the United States and Canada festival,by the American pioneering,original intention is to thank the indians,then people often on this Day thank others.
Since 1941,Thanksgiving Day is on the fourth Thursday in November,in this day will be two days off,and his family reunion,Thanksgiving in November.22-28 between,Thanksgiving Day is the most truly American of the national holidays,the most American of the festival,the Canadian Thanksgiving is dates back to 1879,is in the second Monday in October every year,and the United States Columbus day the same.
翻译：感恩节（Thanksgiving Day）,美国和加拿大节日,由美国首创的,原意是为了感谢印第安人,后来人们常在这一天感谢他人.
自1941年起,感恩节是在每年11月的第四个星期四,在这一天起将休假两天,都要和自己的家人团聚,感恩节在每年11月22－28日之间,感恩节是美国国定假日中最地道、最美国式的节日,加拿大的感恩节则起始于1879年,是在每年10月第二个星期一,与美国的哥伦布日相同.