PLANETARY DAYS.—Among the ancients, the week
was shared among the seven planets, each planet having
its day. This we learn from Dion Cassius and Plu-
tarch, Sympos. l. 4. q. 7. Herodotus adds, that it was
the Egyptians who first discovered what god, that is,
what planet, presides over each day; for that among
this people the planets were directors. And hence it
is, that in most European languages the days of the
week are still denominated from the planets; Sunday,
Monday, &c. See WEEK.