April 15

For eleven years and somewhat over, Bahá’u’lláh abode in ‘Iráq-i-‘Arab. The behavior and conduct of the sect were such that [His] fame and renown increased. For He was manifest and apparent amongst men, consorted and associated with all parties, and would converse familiarly with doctors and scholars concerning the solution of difficult theological questions and the verification of the true sense of abstruse points of divinity. As is currently reported by persons of every class, He used to please all, whether inhabitants or visitors, by His kindly intercourse and courteous address… 
(‘Abdu’l-Baha, ‘A Traveler’s Narrative’)