Tishrei ( or Tishri ; Hebrew: tishré or tishrí); from Akkadianta?r?tu "Beginning", from ?urrû "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.
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 (circa 582 BCE) - Assassination of Gedaliah; now a fast day. (According to many opinions, the assassination actually occurred on Rosh Hashanah, but the commemoration of the event is postponed to the day after the festival).
4 Tishrei (1683 CE) - King Louis XIV expelled the Jews from all French territories in America.
6 Tishrei (1939 CE) - The Wehrmacht murdered 100 Jews in Lukov, Poland, Hy"d.
7 Tishrei (circa 1313 BCE) - Taanit tzaddikim (Orach Chaim 5580:2) commemorating Hashem'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).
11 Tishrei - The Baal Shem Tov writes 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 G-d".
Tishr?n al-Awwal (Arabic? , literally "First Tishrin"): October. The 1973 Yom Kippur War is generally known by the name ?arb Tishr?n ("October War") in Syria and Lebanon, and among the Palestinians, following the Arab custom of naming the Arab-Israeli wars by months or years.