[dr_lew]

The tribes kept track of the seasons by giving distinctive names to each recurring full Moon. ... Since the lunar month is only 29 days long on the average, the full Moon dates shift from year to year.

The first statement is manifestly untrue. There is no easy way to track the seasons with the moon, and the second statement glosses the fact that the shift is in one direction, so the twelve moon names, if applied in order, would quickly become out of season.

[Diana in Wisconsin]

Every party needs a pooper, that’s why we invited you...Dr. Lew! ;)

[OpeEdMunkey]

the shift is in one direction, so the twelve moon names, if applied in order, would quickly become out of season

Global warming...Bush's fault...