October 18

Unveiled and unconcealed, this Wronged One hath, at all times, proclaimed before the face of all the peoples of the world that which will serve as the key for unlocking the doors of sciences, of arts, of knowledge, of well-being, of prosperity and wealth. 
(Baha’u’llah, ‘Tablet of the World’; ‘Tablets of Baha’u’llah revealed after the Kitab-i-Aqdas’)