Home Events - Diversity Atlas Ridván (9th day) Date Apr 29 2023 Expired! Time All Day Ridván (9th day) The Ninth Day of Ridván honors a historic event in the Baha’i faith. In April of 1863, Baha’u’llah, founder of the Baha’i faith, learned that he had been officially banished from the Ottoman Empire. Share this event + Add to Google Calendar + iCal / Outlook export