By John Hertz: May 20th (by the Gregorian calendar; not yet if you’re an Orthodox Christian using the Julian calendar) was St. Alcuin’s Day. He lived 735-804. To him is attributed the problem of the wolf, the goat, and the cabbage.
It seems he wrote to Charlemagne in 798:
Nec audiendi qui solent dicere, Vox populi, vox Dei, quum tumultuositas vulgi semper insaniae proxima sit.
“And those people should not be listened to who keep saying the voice of the people is the voice of God, since the riotousness of the crowd is always very close to madness.”