Reply To: Why do we CELEBRATE Lag Be'Omer? Home › Forums › Yom Tov › Sefira › Why do we CELEBRATE Lag Be'Omer? › Reply To: Why do we CELEBRATE Lag Be'Omer? May 11, 2012 8:39 pm at 8:39 pm #874977 Sam2Participant MZ: I think I read that Hilula D’Rashbi really only became a popular thing a few hundred years ago.