Thanksgiving Day.

Is also known as the turkey day. It is commonly celebrated on United States and Canada. It was a holiday to express how thankful you were, also to show your appreciation to God and also to share with your friends . 

Something important is that on United States is celebrated the fourth thusday of November, and in Canada is celebrated on the second Monday of October.

The Americans bealive that the first thanks giving happened in 1621, at Plymouth Plantation, in Massachusetts there are more evidences that the earlier celebrations in Canada (1578).