Is it permitted to establish a communal fast on the 9th of Tammuz in addition to the obligatory 17th?

Synopsis

While the 9th of Tammuz marks the breach of the First Temple, the Sages did not impose a fast on that day to avoid overburdening the community with too many fasts, though pious individuals may fast voluntarily.

Late Acharonim
Lenient
Strict
Lesser cited
Major authority

Discussion

Discussion coming soon.

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