Declaration of the Bab (The Bahá’í Faith)
May 22 - May 23
Commemorates May 23, 1844 when the Bab, the Martyred Prophet Herald of the Bahá’í Faith, announced in Persia, that he was the Herald of a new messenger from God in Shiraz Persia
Work is to be suspended and children excused from school.
https://www.bahaiblog.net/bahai-calendar/about-the-declaration-of-the-bab/