Seventeenth of Tammuz

E68810

Jewish fast day minor fast day in Judaism

The Seventeenth of Tammuz is a Jewish fast day commemorating the breaching of Jerusalem’s walls and other calamities that began the mourning period leading up to Tisha B’Av.

Try in SPARQL Jump to: Surface forms Disambiguation Statements Elicitation Referenced by

AI illustration

All labels observed (3)

Label	Occurrences
Seventeenth of Tammuz canonical	7
Fast of the Seventeenth of Tammuz	1
Shivah Asar b’Tammuz	1

How this entity was disambiguated

This entity first appeared as the object of triple T546198 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.

NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07

Target entity: Seventeenth of Tammuz
Context triple: [Tammuz, majorFastDay, Seventeenth of Tammuz]

A. Tisha BAv
Tisha B'Av is a major Jewish fast day of mourning that commemorates the destruction of the First and Second Temples in Jerusalem and other tragedies in Jewish history.
B. Tammuz
Tammuz is the fourth month of the Hebrew religious calendar, traditionally falling in early summer and associated with historical fasts and mourning in Jewish tradition.
C. Nisan
Nisan is the first month of the Hebrew religious year, traditionally associated with spring and the festival of Passover.
D. תמוז
תמוז הוא החודש הרביעי בלוח השנה העברי, הנופל בתחילת הקיץ ומזוהה עם ימי בין המצרים ואירועים היסטוריים קשים במסורת היהודית.
E. Iyar
Iyar is the second month of the Hebrew calendar’s religious year, falling in spring and associated with events such as Israel’s Independence Day and Lag BaOmer.
F. None of above. chosen
G. Unsure - the case is ambiguous/there is not enough information to decide.

NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07

Target entity: Seventeenth of Tammuz
Target entity description: The Seventeenth of Tammuz is a Jewish fast day commemorating the breaching of Jerusalem’s walls and other calamities that began the mourning period leading up to Tisha B’Av.

A. Tisha BAv
Tisha B'Av is a major Jewish fast day of mourning that commemorates the destruction of the First and Second Temples in Jerusalem and other tragedies in Jewish history.
B. Tammuz
Tammuz is the fourth month of the Hebrew religious calendar, traditionally falling in early summer and associated with historical fasts and mourning in Jewish tradition.
C. Nisan
Nisan is the first month of the Hebrew religious year, traditionally associated with spring and the festival of Passover.
D. תמוז
תמוז הוא החודש הרביעי בלוח השנה העברי, הנופל בתחילת הקיץ ומזוהה עם ימי בין המצרים ואירועים היסטוריים קשים במסורת היהודית.
E. Iyar
Iyar is the second month of the Hebrew calendar’s religious year, falling in spring and associated with events such as Israel’s Independence Day and Lag BaOmer.
F. None of above. chosen

Statements (52)

Predicate	Object
instanceOf	Jewish fast day ⓘ minor fast day in Judaism ⓘ
associatedConcept	destruction of the Temple ⓘ national Jewish mourning ⓘ repentance and introspection ⓘ
associatedText	Talmud, tractate Ta’anit ⓘ linked to: Talmud
calendarRelation	17 Tammuz is 21 days before 9 Av ⓘ
category	Days of mourning in Judaism ⓘ Jewish fast days ⓘ Jewish holidays related to the Temple in Jerusalem ⓘ
commemorates	breach of Jerusalem’s walls ⓘ events leading to the destruction of the Temple ⓘ multiple historical tragedies in Jewish tradition ⓘ
dayInHebrewMonth	17 ⓘ
drinkingPermitted	no ⓘ
eatingPermitted	no ⓘ
endsPeriod	none ⓘ
exemptions	the ill, pregnant women, nursing women, and others in many halachic rulings ⓘ
fallsInSeason	summer ⓘ
fastDuration	from dawn until nightfall ⓘ
fastType	sunrise-to-nightfall fast ⓘ
Haftarah	Isaiah 55–56 or similar penitential passages in some rites ⓘ
halachicStatus	rabbinic fast day ⓘ
HebrewName	Shivah Asar b’Tammuz ⓘ linked to: Seventeenth of Tammuz שבעה עשר בתמוז ⓘ
leadsUpTo	Tisha B’Av ⓘ linked to: Tisha BAv
linkedToEvent	beginning of the siege’s final stage before the destruction of the Second Temple ⓘ beginning of the three weeks of mourning ⓘ breach of the walls of Jerusalem ⓘ breaching of Jerusalem’s walls by the Romans ⓘ breaching of Jerusalem’s walls in 70 CE according to rabbinic tradition ⓘ breaching of Jerusalem’s walls in the First Temple period according to some traditions ⓘ other calamities in Jewish history ⓘ
liturgicalAdditions	Selichot ⓘ special Torah reading ⓘ
monthInHebrewCalendar	Tammuz ⓘ
mourningPracticesBegin	customary avoidance of music during the Three Weeks ⓘ customary avoidance of weddings during the Three Weeks ⓘ restrictions on celebrations during the Three Weeks ⓘ
obligation	binding on healthy adult Jews according to halacha ⓘ
observedBy	Conservative Jews ⓘ linked to: Conservative Judaism Jews ⓘ Orthodox Jews ⓘ linked to: Orthodox Judaism religious Jews ⓘ some Reform Jews ⓘ
prayerChanges	Aneinu added in Amidah in many communities ⓘ Selichot recited in morning prayers ⓘ
religion	Judaism ⓘ
startsPeriod	Bein ha-Metzarim ⓘ linked to: Bein haMetzarim Three Weeks ⓘ
TorahReading	Exodus 32 (sin of the Golden Calf) in many rites ⓘ
workPermitted	yes ⓘ

How these facts were elicited

Referenced by (9)

Full triples — surface form annotated when it differs from this entity's canonical label.

Tammuz → majorFastDay → Seventeenth of Tammuz ⓘ

Tammuz → mourningPeriodBegins → Seventeenth of Tammuz ⓘ

Three Weeks → startEvent → Seventeenth of Tammuz ⓘ

Three Weeks → fastDayIncludes → Seventeenth of Tammuz ⓘ

Three Weeks → relatedConcept → Seventeenth of Tammuz ⓘ

Seventeenth of Tammuz → HebrewName → Shivah Asar b’Tammuz ⓘ

linked to: Seventeenth of Tammuz

Fast of Gedaliah → relatedTo → Seventeenth of Tammuz ⓘ

Fast of the Tenth of Tevet → relatedTo → Seventeenth of Tammuz ⓘ

Bein haMetzarim → startEvent → Fast of the Seventeenth of Tammuz ⓘ