The first Thanksgiving celebration occurred in 1621, during which Massasoit Wampanoag native Americans, led by chief Ousamequin, aided unstable arrival of the outsiders. Yet the aid of the sachem was largely contributed by the fact that the Wampanoag by now had been drenched by English colonization, slave-trade and epidemic outbreaks. It isn't surprising that the meaning of the first Thanksgiving was smeared by the consequences of subjugation and injustice. During the start of the colonial period, Mononites missionaries found Native Americans' seasonal festive practices a form of devil-driven paganism and their mission to convert the native population to Christianity was largely failed.