Background and History of Thanksgiving

Thanksgiving is a national holiday in the US and Canada. What were the details of the original account as told by an eyewitness? What is the concept of a "sacrifice of thanksgiving" as mentioned in the bible in Psalms and Leviticus? How are we to be living sacrifices of thanksgiving today?

Bob and his wife Linda have two children and six grandchildren. They have been married for over 40 years and live in rural Pennsylvania, where they own and operate a health and wellness center.