Kanienkehaka means "people of the flint". Mohawk comes from an Algonquian word meaning "man-eater" possibly meaning those who eat meat. The use of People of the Flint is associated with their origins in the Mohawk Valley, and their original homeland in New York. There, the Indians used flint deposits to tip Mohawk arrows, and for toolmaking. As original members of the Iroquois League, or Haudenosaunee, the Mohawk were known as the "Keepers of the Eastern Door", who guarded the Iroquois Confederation against invasion from that direction.