The Indian Claims Commission ran four decades and could award only money, not land.

Evidence

The Indian Claims Commission eventually abandoned its mandate to complete its work in ten years, as numerous extensions dragged the process out across four decades; it remained in operation until September 30, 1978. There were problems from day one, not the least of which was that the Tribal Nations wanted land and not money, but the commission was empowered to award only monetary damages. — Dorothy A. Brown, Getting to Reparations, 155