RE:Lowest volume I've ever seen Why is Thanksgiving celebrated on a Thursday?
More than 230 years ago, President George Washington designated November 26 as a day of National Thanksgiving in 1789.
But long before then, American colonists had been gathering to celebrate the bounty reaped from their annual harvest with the first recorded Thanksgiving occurring in 1621.
However, according to the Washington Post, it may have even been earlier than that, with historians suggesting that settlers put on a Thanksgiving feast as early as 1565.