Birth of Bahá'u'lláh commemorates the 1817 birth of Mírzá Husayn-`Alí Núrí, known as Bahá'u'lláh ("Glory of God"), the founder and central prophetic figure of the Bahá'í Faith, who Bahá'ís believe was the most recent in a line of divine messengers that includes Moses, Buddha, Jesus, and Muhammad. Bahá'ís regard him as having brought teachings emphasizing the unity of humanity, religion, and science for this age. Observed alongside the Birth of the Báb as one of the Twin Birthdays, this holy day involves gatherings for prayer, reflection on Bahá'u'lláh's writings, and communal celebration, and work is typically suspended for Bahá'ís observing the holiday.