An uprising by the hairy giants of North America which caused the Magical Congress of the United States (MACUSA) to move operations to New York City (Pm).
Sasquatch: from the Salish Tribe of the Pacific Northwest sæsq'ec meaning "big hairy man"
The origin of the name might lead to the conclusion that the "Washington" mentioned as the previous location of MACUSA before the Sasquatch Rebellion was in the Pacific Northwest. But some readers have concluded that the author meant Washington D.C., the location of the NoMaj government and closer to the location of Ilvermorny Wizarding School. While the legend of Sasquatch is much more connected to Washington State, there have been tales of tall hairy creatures in the Eastern United States with sightings that persist up till today, so right now we cannot say with certainty which Washington was implied.