Halocho #416 - Today (Monday) is a fast day; Zom Gedalya

On the 3rd of Tishrei Gedalya ben Achikam was killed. After the destruction of the first Bet Hamikdash, Nebuchadnezzar appointed him Governor over the remnants of the Jews in Land of Israel . Once Gedalya was killed then they too were exiled or murdered and the land became desolate. (Some say that Gedalya ben Achikam was killed on Rosh Hashanah and the fast was deferred till after Yom Tov.) This tragic event is the reason that today is a fast day. The fast begins Monday at dawn and ends at nightfall (a few minutes before the time for Motzai Shabbat). Pregnant and nursing mothers are exempt from fasting. Anybody who isn't healthy shouldn't fast. When in doubt, consult your LOR (Local Orthodox Rabbi). Children are not allowed to fast. Those who are not fasting should limit their food intake to the bare minimum; only bread and water if possible. Source: Kitzur Shulchan Aruch 121:2, 9 Have a meaningful fast, - Danny Monday, 3 Tishrei 5770