Last year's Lag B'Omer post is here. It discussed the biblical and rabbinic background of the holiday and collected previous posts of interest. Other posts involving Lag B'Omer from the last year are here, here, here, and here.
UPDATE: A couple of readers wrote in to point out that the wording of the opening of this post was inaccurate and confusing. I have corrected it accordingly. I am grateful for the feedback. Follow the link (now also corrected!) to last year's Lag B'Omer post for details about the holiday.
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