April 3

May America become the distributing center of spiritual enlightenment, and all the world receive this heavenly blessing! For America has developed powers and capacities greater and more wonderful than other nations... May the inhabitants of this country ... rise from their present material attainments to such a height that heavenly illumination may stream from this center to all the peoples of the world. 
(‘Abdu’l-Baha, quoted by Shoghi Effendi in a letter dated June 15, 1946; ‘Messages to America’)