nostr:npub16nefft85cck8cxq9jg55kft9636j04nzct4zz38asc4wg73hdfzqmethh0 

Tisha B'Av (Hebrew: תִּשְׁעָה בְּאָב[a] Tīšʿā Bəʾāv; IPA: [tiʃʕa beˈʔav] ⓘ, lit. 'the ninth of Av') is an annual fast day in Judaism, on which a number of disasters in Jewish history occurred, primarily the destruction of both Solomon's Temple by the Neo-Babylonian Empire and the Second Temple by the Roman Empire in Jerusalem.

https://en.wikipedia.org/wiki/Tisha_B%27Av

9/11 .. date associated with many Jewish national tragedies, Tisha b’Av–the Fast of the 9th of Av.

https://njop.org/911-and-jewish-history/