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  1. Home
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  5. Rosh Chodesh
  6. Kiddush Hachodesh and the Jewish Calendar

Kiddush Hachodesh and the Jewish Calendar

15 Articles

8. The dispute of Rav Sadya Gaon [Rasag] and Rebbe Ahron Ben Meir of Eretz Yisrael

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Calculating the new moon and creating a calendar of months

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  • 1574

From the Rav’s Desk: Were Shluchim sent in Chodesh Sivan to inform others as to when the new moon was sanctified?

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Hashem showed Moshe the new moon

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One versus two days of Rosh Chodesh

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The Biblical command

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  • 696

The names of the Jewish months

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The names of the month

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The order of months that are Malei/Chaseir and the months of Cheshvan/Kisleiv

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The process of determining Rosh Chodesh in times of the Sanhedrin

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  • 695

Understanding Kiddush Hachodesh and the Jewish Calendar-Part 1

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  • 760

Understanding the moon’s cycle

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When did we stop sanctifying the new moon based on testimony and will we continue in the future

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  • 583

When is Rosh Chodesh?

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  • 757

Why the Jewish people are compared to the moon

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  • 930

Daily Learning

  • Daily Tanya – Chapter 3-The Intellect & Emotions of the G-dly soul Part 1 (Monday, 25th Kisleiv) December 15, 2025
  • From the Rav’s Desk: Should Chanukah Candles Be Lit Inside The Home Today, Even Though There Is No Longer Any Danger Associated With Lighting Them Outdoors? (Sunday, 24th Kisleiv) December 14, 2025
  • Daily Halacha – Megilas Antiochus – Background, Authenticity, and Content (Sunday, 24th Kisleiv) December 14, 2025
  • Daily Rambam (1) Eidus Chapter 5: The Testimony of a Single Witness and When a Witness Serves as a Judge (Sunday 24th Kisleiv) December 14, 2025
  • Daily Tanach – Yirmiyahu Chapter 42 – The Remnant’s Choice – Trust in G‑d or Flight to Mitzrayim (Sunday 24th Kisleiv) December 14, 2025
  • Daily Chumash & Rashi – Mikeitz Rishon Pharaohs dreams (Sunday, 24th Kisleiv) December 14, 2025

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Recent Posts

  • Daily Tanya – Chapter 3-The Intellect & Emotions of the G-dly soul Part 1 (Monday, 25th Kisleiv) December 15, 2025
  • From the Rav’s Desk: Should Chanukah Candles Be Lit Inside The Home Today, Even Though There Is No Longer Any Danger Associated With Lighting Them Outdoors? (Sunday, 24th Kisleiv) December 14, 2025
  • Daily Halacha – Megilas Antiochus – Background, Authenticity, and Content (Sunday, 24th Kisleiv) December 14, 2025
  • Daily Rambam (1) Eidus Chapter 5: The Testimony of a Single Witness and When a Witness Serves as a Judge (Sunday 24th Kisleiv) December 14, 2025
  • Daily Tanach – Yirmiyahu Chapter 42 – The Remnant’s Choice – Trust in G‑d or Flight to Mitzrayim (Sunday 24th Kisleiv) December 14, 2025
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