Meton in Harpers Dictionary of Classical Antiquities (1898)

（Μέτων). A Greek astronomer of Athens, who instituted in B.C. 432 the cycle of nineteen years called after him; it was intended to reconcile the lunar and the solar year: 235 lunar months of 29 or 30 days (on an average 29 25/47)=19 solar years of 365 5/19 days. This cycle was not adopted at Athens till much later, probably in B.C. 330. (See Calendarium.) He is said to have feigned insanity in order to avoid going on the ill-fated Sicilian expedition in the Peloponnesian War