Ever since Ebenezer Sibly first introduced his proposed horoscope for the Declaration of Independence in his 1780 book 'The Celestial Science of Astrology, ' agreement on the correct USA National Horoscope has proven elusive with over a dozen different horoscope variations proposed. Discovery of the Regulus USA National Horoscope is unique for its first application of medieval astrological techniques to the question of modern National Horoscopes. Focusing on the Ascendant, over 300 measurements computed using both primary directions and solar arc directions are presented to support the rectification. Included as a special application of primary directions is the largest empirical study of Directing through the Bounds ever attempted or presented. Results that the directed Ascendant times shifts in the national consciousness represent a significant contribution to the history of American social movements. Intended for astrologers new to primary directions, America is Born includes a complete set of instructions, formulas, and examples for computation of Ascendant primary directions.