Check out the short and fascinating account of Lag Ba’omer from a letter written by a student of the Chevron Yeshiva, plus analysis.
A cute quote:
It was an amazing sight, albeit a bit wild and lacking Jewish flavor. In didn’t find favor in my eyes at all, but it was interesting to watch. Mainly it was a Chag for their children who went around with fireworks in their hands and with beaming and shining faces.
The essay is called “Lag B’Omer through the eyes of a Litvak in 1925 – A Static and Evolving Chag“.