Hayom Yom 30 Shvat - The first day in Lubavitch as the birthday

כַּמָּה וְכַמָּה חֲסִידִים חָשְׁבוּ יוֹם בּוֹאָם לְליוּבּאַוִויטְשׁ לְיוֹם הוּלֶדֶת שֶׁלָּהֶםMany chassidim used to consider the day they first came to Lubavitch as their birthday.מוֹרִי הָרַשְׁבַּ"ץ בָּא בַּפַּעַם הָרִאשׁוֹנָה לְליוּבּאַוִויטְשׁMy teacher, the Rashbatz, arrived in Lubavitch for the first timeאוֹר לְיוֹם שִׁשִּׁי פָּרָשַׁת מִשְׁפָּטִים שְׁנַת תּר"חon the Thursday night of Parshas Mishpatim, 5608 (1848).וּבְכָל שָׁנָה וְשָׁנָה הָיָה עֵר כָּל אוֹתוֹ הַלַּיְלָהEvery year, [on that evening,] he would stay awake throughout that night,וּמְכַוֵּן לְהָנִיחַ תְּפִלִּין בָּהּ בְּשָׁעָה אֲשֶׁר נִכְנַס לְהַצֶּמַח צֶדֶק בַּפַּעַם הָרִאשׁוֹנָהand [in the morning] put on his tefillin at precisely the hour that he had entered the study of the Tzemach Tzedek [for yechidus] for the first time.Text and Translation courtesy of Sichos in English