The Birth of Bahá’u’lláh, celebrated by Bahá'ís globally, honors the birth of Bahá’u’lláh, the founder of the Bahá'í Faith, who declared a mission of promoting unity and peace for all humankind. Observed with prayers, gatherings, and reflection, this holiday is paired with the Birth of the Báb and collectively referred to as the "Twin Holy Birthdays.”