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Months
The Lunar Cycle The Jewish calendar is based on lunar cycles. The lunar cycle which the Jewish calendar follows is called a synodic month, not to be confused with the sidereal month, the amount of time it takes for the moon to complete an orbit around ...
Jewish Calendar » About » Months
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The Power of Revival
By Zalman Posner
The lunar calendar must have a special quality beyond its specific function, a pervasive characteristic to merit its beginning Jewry's service of G-d.
Parshah » Shemot - Exodus » Bo » Parshah Columnists » Reflections on the Parshah » The Power of Revival
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Pi and Time
How Torah liberated humankind from the bondage of fate
By Tzvi Freeman
Once upon a time, time was round. Then somehow, we straightened it out, put an arrow on the end and took it for a ride. Now let me tell you how it happened...
Spirituality » Essays » Pi and Time
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Jews Commanded 1st Mitzvah
1313 BCE
Shortly before sundown on the 29th of Adar, G-d commanded Moses regarding the mitzvah of sanctifying the crescent new moon and establishing a lunar calendar. This is the first mitzvah the Jews were given as a nation. Moses had difficulty envisaging the ...
Jewish Calendar » Adar » Adar 29 » Jewish History » Jews Commanded 1st Mitzvah
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The Phases of the Moon
By Rebbe Nachman of Breslev
Jewish mystics teach that judging others favorably is the true test of righteousness.
Kabbalah Online » Holidays » New Moon » The Phases of the Moon
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Kiddush Levana
10 Menachem-Av, 5748 • July 24, 1988
The Rebbe recites Kiddush Levana, Sanctification of the Moon, in front of his home on President Street.
The Rebbe » Living Torah » Archive » Program Forty Six » Kiddush Levana
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Jewish Calendar Inaugurated
1313 BCE
On the first of Nissan of the year 2448 from creation (1313 BCE--two weeks before the Exodus), G-d showed Moses the crescent new moon and told him, "When you see the moon like this, sanctify [the new month]." This ushered in the first Jewish month, and ...
Jewish Calendar » Nissan » Nissan 1 » Jewish History » Jewish Calendar Inaugurated
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The First Creation
Based on the teachings of the Lubavitcher Rebbe
"Creation" (beriah, in the Hebrew), which means bringing something into being out of a prior state of non-existence, implies a "before" and "after"; so to say that G-d created anything is also to say that He first (or simultaneously) created time...
Parshah » Bereishit - Genesis » Bereishit » Chassidic Masters » The First Creation
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But the Sun is in the Wrong Place!
By Tzvi Freeman
So it seems the Jewish rabbis knew their stuff. If so, the question is even stronger: If they could figure that out, why are they so far off with this blessing on the sun? So what gives?
Jewish Holidays » Special Years » Birkat Hachamah » Study » In-Depth » But the Sun is in the Wrong Place!
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Why are holidays celebrated an extra day in the Diaspora?
By Nechama Posner
The answer has its roots in the history of the Jewish calendar. Originally, there was no fixed calendar. Each month anew, the Sanhedrin (Rabbinic Supreme Court) in Jerusalem would determine whether the previous month had been 29 or 30 days long -- ...
Ask the Rabbi » Latest Questions » The Details » Why are holidays celebrated an extra day in the Diaspora?
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