May 11

You are probably aware that the point round which the Bahá'í teachings revolve is unity. This is expressed essentially in the belief that all the revealed religions, such as Judaism, Christianity, and Islam, have come from the same Divine Source, but progressively at different times. Each exerts major spiritual, moral, and social influence for a particular time, a dispensation. The essential understanding of Bahá'ís concerning their own Faith is that its Founder, Bahá'u'lláh, is the latest Divine Messenger or Manifestation from God, Who has established a dispensation for a duration of at least one thousand years, after which a new Manifestation will come. 
(From a letter dated 29 June 1995, written on behalf of the Universal House of Justice to an individual believer)