The first Thanksgivings were probably harvest festivals intended to thank God for abundant harvests. This is why Thanksgiving is celebrated in late autumn, after the harvest is in.
This holiday is a day of thanksgiving to thank God for allowing the first settlers from England to settle on American soil thanks to abundant crops.
More generally, during this day we give thanks for the good things we have received during the year.
Voilà, je suis contente de t'avoir aidée, fin je l'espère, et, je te souhaite une bonne fin de holidays !!\( ̄︶ ̄*\))