Is your info from the 1619 Project, because——————
The First Thanksgiving. The First Thanksgiving - Berkeley Plantation is a Virginia and National Historic Landmark. Being a native of Virginia such distinctions are of vital significance. Virginians are convinced their ancestors celebrated the first Thanksgiving when Jamestown settlers in 1610 held a service of Thanksgiving
Well, you could say the Spanish did it first... Or perhaps even the Aztecs, if your god is a Flying Feathered Serpent who demands beating hearts are stuffed in his stone maw...
But most Americans rightfully cite the Pilgrims at Plymouth Plantation & Colony...