The pilgrims thanksgiving
All throughout history there have been celebrations of thankfulness to God at harvest time.Though the origin of Thanksgiving is debatable depending on who you get your information from some say the first Thanksgiving was celebrated after a long period of drought, sickness, and hardships and was celebrated with friendly Indians who helped the pilgrims have a bountiful harvest and they also say that the Pilgrims prayed over their crops asking the Lord for rain and their prayer's were heard and answered. It rained and their crops were saved so they were very thankful to God.
Origin of Thanksgiving: Christiananswers
The Natives View of Thanksgiving
On the other hand some in the Native circle say that there were, no Indians allowed at the first Thanksgiving feast, in fact, there was a wall erected around the Pilgrims to keep Indians out and that is the reason many Indian tribes such as the Pequot's do not celebrate the holiday due to a violent massacre of the Pequot Tribe and other's. This article states that if any Indian's were there, they certainly had not been invited.
Still other's seek to expel Thanksgiving myth's..
Bible verses about thankfulness
What the bible says about thankfulness