September 29
Saints Michael, Gabriel, and Raphael, Archangels is invoked as patron of police officers. The Feast of Saints Michael, Gabriel and Raphael, popularly known as Michaelmas, honors the three archangels named in Sacred Scripture. The feast was originally a Roman dedication-feast: on 29 September a basilica of Saint Michael, the Basilica Sancti Michaelis Archangeli in Septimo or Salaria, was dedicated near Rome in the fifth century. Sources: https://www.vatican.va/archive/ccc_css/archive/catechism/p1s2c1p5.htm.
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