Seventeenth of Tammuz
E68810
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.
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
ⓘ
surface form:
Talmud, tractate Ta’anit
|
| 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 |
Seventeenth of Tammuz
self-linksurface differs
ⓘ
surface form:
Shivah Asar b’Tammuz
שבעה עשר בתמוז ⓘ |
| leadsUpTo |
Tisha BAv
ⓘ
surface form:
Tisha B’Av
|
| 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 Judaism
ⓘ
surface form:
Conservative Jews
Jews ⓘ Orthodox Judaism ⓘ
surface form:
Orthodox Jews
religious Jews ⓘ some Reform Jews ⓘ |
| prayerChanges |
Aneinu added in Amidah in many communities
ⓘ
Selichot recited in morning prayers ⓘ |
| religion | Judaism ⓘ |
| startsPeriod |
Bein haMetzarim
ⓘ
surface form:
Bein ha-Metzarim
Three Weeks ⓘ |
| TorahReading | Exodus 32 (sin of the Golden Calf) in many rites ⓘ |
| workPermitted | yes ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Seventeenth of Tammuz Description of subject: 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.
Referenced by (9)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Shivah Asar b’Tammuz
this entity surface form:
Fast of the Seventeenth of Tammuz