The 9th plague to strike the Egyptians for their refusal to release the Children of Israel from slavery -- a thick darkness that blanketed the land so that "no man saw his fellow, and no man could move from his place" (Exodus 10:23) -- commenced on the 1st of Adar, six weeks before the Exodus.
Link: More on The Plague of Darkness
The highly regarded Biblical commentator, Rabbi Abraham ben Meir Ibn Ezra (1089?-1164CE), passed away on Adar 1, 4924.
Link: Rabbi Abraham Ibn Ezra
Adar 1 is also the yahrtzeit (anniversary of the passing) of the great Halachist Rabbi Shabtai Hakohen Katz (1621-1663?), author of the Siftei Cohen commentary on Rabbi Yosef Caro's Code of Jewish Law. He is known as "Shach" -- an acronym of the name of his work, which serves to this day as a primary source of Halachah (Jewish law).
Link: The Shach
On this date, in the year following the Holy Temple’s destruction, G‑d tells Ezekiel to take up a lamentation for Pharaoh, king of Egypt, foretelling his downfall in the hands of the Babylonians.
Read the prophecy here: Ezekiel ch. 32
Today is the second of the two Rosh Chodesh ("Head of the Month") days for the month of "Adar II" (when a month has 30 days, both the last day of the month and the first day of the following month serve as the following month's Rosh Chodesh).
Special portions are added to the daily prayers: Hallel (Psalms 113-118) is recited -- in its "partial" form -- following the Shacharit morning prayer, and the Yaaleh V'yavo prayer is added to the Amidah and to Grace After Meals; the additional Musaf prayer is said (when Rosh Chodesh is Shabbat, special additions are made to the Shabbat Musaf). Tachnun (confession of sins) and similar prayers are omitted.
Many have the custom to mark Rosh Chodesh with a festive meal and reduced work activity. The latter custom is prevalent amongst women, who have a special affinity with Rosh Chodesh -- the month being the feminine aspect of the Jewish Calendar.
Links: The 29th Day; The Lunar Files
In the month of Elul, the month before Rosh Hashanah, a signal goes out to every Jewish soul that it is time to return to the palace that is home.
It is a signal both subtle and loud.
Subtle, because it does not awaken even those who are closest—every soul must awaken itself. Loud, because it reaches those who have been thrown to the edge of the universe.
Loud, because it is a signal of love and joy. Subtle, because it is an intimately personal call.
Loud, because it provides immeasurable powers to break out of whatever holds you back, lift you above all obstacles, and carry you all the way home. Subtle, because the power is there, but latent, quiet, awaiting your determination.
How can a signal be both subtle and loud, joyful and intimate, empowering and latent?
Because this signal originates from the very origin of your own soul, that place from which your soul was torn but has never truly abandoned. And as distant as a soul may stray, as lost as she may be, she will always remain one with her Beloved.
And now she hears her Beloved call, from a place deep within herself.