Definitions from Black's Law Dictionary: 2nd Edition and Ballentine's Law Dictionary as are available for each term in each dictionary.
  • Ballentine's Law Dictionary

    The escape of Mohammed from the Meccans on Friday, July 16, 622, A. D., from whence dates the calendar of the Arabians and the Turks.

  • Black's Law Dictionary: 2nd Edition

    The epoch or account of time used by the Arabians and the Turks, who begin their computation from the day that Mahomet was compelled to escape from Mecca, which happened on Friday, July 16, A. D. 622, under the reign of the Emperor Heraclius. Wharton.