“Most Indians [= indigenous Americans] did not know how old they were. They measured time in days, moons, and winters, but they had no weeks, hours, or minutes. On the eve of an important event, when they were afraid they might oversleep in the morning—for example, when a war party discovered an enemy camp and wanted to make sure to wake up and attack it at first light—Indians would drink a lot of water before going to bed.” — Ian Frazier, Great Plains (1989), p. 48.