The Longhouse Religion, also known as the Handsome Lake cult, or Gai'wiio (Good Message in Seneca) is a religious movement started by the Seneca Chief Handsome Lake (Ganioda'yo). Founded in 1799, it is the oldest active prophet movement in North America. The Seneca are a Native American people, one of the Six Nations of the Iroquois League. ... Handsome Lake (1735 – 10 August 1815) was a Seneca religious leader of the Iroquois people. ...

Ganioda'yo received his revelations while in a trance, after which he formed the movement. At the time, the Seneca's religion had elements from both Quaker Christianity and traditional Seneca beliefs. The Religious Society of Friends (commonly known as Quakers or Friends) was founded in England in the 17th century. ...

Ganioda'yo's teachings spread through the Iroquois, eventually being known as The Code of Handsome Lake. The movement is currently practiced by about 5,000 people. The Iroquois Confederacy (Haudenosaunee, also known as the League of Peace and Power, Five Nations, or Six Nations) is a group of First Nations/Native Americans. ...