Who knows two hundred eighty?
?שמונים ומאתים - מי יודע
In the spirit of the song "Echad - mi yodeya", please post interesting and significant Jewish facts about the number 280.
I'm feeling bullish about people's ability to make something of the lazy gematria this time.
Check out mi-yodeya-series for the previous two hundred seventy-nine entries in this ongoing series.