Other calamities in Jewish history also occurred during this time of the year. It is believed that the epidemic in Roman times abated on the 33rd day, which accounts for the happier mood of Lag Ba’Omer.
Yet there still remains a problem in that in most traditions the sadness resumes the following day. A novel interpretation is given by some who note that the pilgrimages to the Temple for Pesach, Shavu’ot and Sukkot were particularly difficult when people went for Pesach, returned home for a few days and then set out again for Shavu’ot. It is possible that despite the strain of travelling they were keyed up on 18 Iyyar when their next journey to Jerusalem began.