Although Navajo parents followed few hard rules about how to name their children, it was generally agreed that the watershed moment when a baby could definitively be said to have passed from infanthood into something more fully human was the child’s “first spontaneous laugh.” First laughter was an occasion for much celebration, and it was the time when many Navajos held naming ceremonies for their young; it is likely that this is when Narbona received his original “war name,” whatever it might have been.
