Who knows nineteen?

Please cite/link your sources, if possible. After about one business day, I will:

  • Upvote all interesting answers.

  • Accept the best answer.

  • Go on to the next number.


Nineteen are the years in a "machzor katan" - the cycle of regular and leap years in the Jewish calendar.


Nineteen are the Letters of R' Hirsch.


Nineteen were the centuries between Destruction and Re-unification.


19 are the berachot in the 18


19 were the years that Am Israel dwelled in Kadesh, and nineteen years they were wandering about aimlessly (see Rashi in Devarim 1:46)


Nineteen days is the longest possible tzara'at-quarantine. (Nega'im 3:8)

  • Coronavirus quarantines are only 14 days... – Double AA Mar 27 '20 at 11:06

Nineteen are the books of Tanach that the Christians agree count as a single book each.

(Of the 24 books of the Tanach, Christians split each of Samuel, Kings, Chronicles, Ezra/Nechemiah, and Trei Asar into two or more books. That leaves nineteen. 5 of the Chumash + 5 Megilos + Yehoshua Shoftim Yishaya Yirmiya Yechzkel + Tehilim Mishlei Iyov + Daniel = 19. )


19 is the day of Kislev when R' Shneur Zalman of Liadi was released from prison.

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