Tishrei
The holiest day of the Jewish calendar, Yom Kippur, the Day of Atonement, takes place on the 10th of Tishrei.
Native name	תִּשְׁרֵי‎ (Hebrew)
Calendar	Hebrew calendar
Month number	7
Number of days	30
Season	Autumn (Northern Hemisphere)
Gregorian equivalent	September–October
Significant days	Rosh Hashanah Fast of Gedalia Yom Kippur Sukkot Hoshanah Rabbah Shemini Atzeret Simchat Torah
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Tishrei (/ˈtɪʃreɪ/) or Tishri (/ˈtɪʃriː/; Hebrew: תִּשְׁרֵי‎ tīšrē or תִּשְׁרִי‎ tīšrī; from Akkadian tašrītu "beginning", from šurrû "to begin") is the first month of the civil year (which starts on 1 Tishrei) and the seventh month of the ecclesiastical year (which starts on 1 Nisan) in the Hebrew calendar. The name of the month is Babylonian. It is a month of 30 days. Tishrei usually occurs in September–October on the Gregorian calendar.

In the Hebrew Bible the month is called Ethanim (Hebrew: אֵתָנִים – 1 Kings 8:2), or simply the seventh month. In the Babylonian calendar the month is known as Araḫ Tišritum, "Month of Beginning" (of the second half-year).

Edwin R. Thiele has concluded, in The Mysterious Numbers of the Hebrew Kings, that the ancient Kingdom of Judah counted years using the civil year starting in Tishrei, while the Kingdom of Israel counted years using the ecclesiastical new year starting in Nisan. Tishrei is the month used for the counting of the epoch year – i.e., the count of the year is incremented on 1 Tishrei.

Holidays

• 1–2 Tishrei – Rosh Hashanah
• 3 Tishrei – Tzom Gedaliah – (Fast Day) – On Tishrei 4 when Tishrei 3 is Shabbat
• 9 Tishrei – Erev Yom Kippur
• 10 Tishrei – Yom Kippur – (Fast Day)
• 15–21 Tishrei – Sukkot/Sukkos
• 21 Tishrei – Hoshanah Rabbah
• 22 Tishrei (and 23 outside of Israel) – Shemini Atzeret/Atzeres & Simchat Torah/Simchas Torah

In Jewish history and tradition

• 1 Tishrei (c. 3760 BCE) – Adam and Eve were created, according to one opinion in the Talmud.
• 1 Tishrei (1923 CE) – Daf Yomi study regimen is launched.
• 2 Tishrei (1659 CE) – HaRav Tuvya and HaRav Yisroel were murdered in a blood libel in Razino.
• 3 Tishrei (c. 582 BCE) – Assassination of Gedaliah; now a fast day.
• 4 Tishrei (1683 CE) – King Louis XIV expelled the Jews from all French territories in America.
• 5 Tishrei (135 CE) – Rabbi Akiva is arrested.
• 6 Tishrei (1964 CE) – death of Chana Schneerson mother of the Lubavitcher Rebbe Menachem Mendel Schneerson.
• 6 Tishrei (1939 CE) – The Wehrmacht murdered 100 Jews in Lukov, Poland.
• 7 Tishrei (c. 1313 BCE) – Taanit tzaddikim (Orach Chaim 5580:2) commemorating God's decree that the Dor Hamidbar die in the wilderness because of the sin of the Eigel HaZahav / Golden Calf (according to some, (Kol Bo and others), the event took place one day earlier, on 6 Tishrei).
• 8 Tishrei (c. 946 BCE) – 14-day dedication of Solomon's Temple begins.
• 9 Tishrei (123 CE) – Death of the Tanna R' Elazar ben Rab' Shimon.
• 10 Tishrei (c. 1313 BCE) – Moses returns from a final trip to Mount Sinai, bearing a second set of tablets and a message of forgiveness for the Golden Calf.^{[citation needed]}
• 10 Tishrei (1973 CE) – The armies of Egypt, Syria, and other Arab states attack Israeli positions in the Sinai and Golan Heights, beginning the Yom Kippur War.
• 11 Tishrei – The Baal Shem Tov wrote that the day after Yom Kippur is an even greater holiday than Yom Kippur itself, a day called "Bshem HaShem" or in Yiddish "Gott's Nomen", literally "The Name of God".
• 13 Tishrei (1882) Passing of the Rebbe Maharash, the 4th Chabad Rebbe.
• 16 Tishrei (1349 CE) – The Jewish population of Krems, Germany, was massacred in the Black Death riots.
• 18 Tishrei (1810 CE) – Death of Rabbi Nachman of Breslov
• 22 Tishrei (2023 CE) - Hamas, alongside several other Palestinian militias, attacks Israel, beginning the 2023 Israel–Hamas war
• 25 Tishrei (1809 CE) – Death of Rabbi Levi Yitzchok of Berditchev