Occult:This month in history/May
- May 2 - Anne Boleyn, Queen of England, is imprisoned on charges of adultery, incest, treason and witchcraft. (1536)
- May 2 - German Jesuit scholar and author Athanasius Kircher is born. (1602)
- May 4 - Religious reformers John Wycliffe and Jan Hus are condemned as heretics at the Council of Constance. (1415)
- May 7 - Argentine folk saint Eva Perón is born. (1919)
- May 8 - Joan of Arc lifts the Siege of Orléans, turning the tide of the Hundred Years' War. (1429)
- May 9 - Austrian painter Christoph Haizmann successfully retrieves his diabolical pact from Satan with the help of an exorcist. (1678)
- May 9 - Doug Headrick, a 12-year-old boy, disappears from Devil's Gate Dam in Pasadena, California. (1960)
- May 10 - Antoine Court de Gébelin, author who wrote an early treatise on the Tarot, dies in Paris. (1784)
- May 13 - Psychic Jeane Dixon predicts the assassination of John F. Kennedy in an issue of Parade Magazine. (1956)
- May 15 - French author Jean-Baptiste Pitois, who coined the terms Major Arcana and Minor Arcana, is born. (1811)
- May 16 - In Rome, Pope Benedict XV canonizes Joan of Arc. (1920)
- May 19 - Arthur Edward Waite, creator of the Rider-Waite Tarot, dies. (1942)
- May 23 - A merchant of Shiraz, the forerunner of the Baháʼí Faith, announces that he is a prophet and founds a religious movement. (1844)
- May 23 - German physician and astrologer, Franz Mesmer, is born. (1734)
- May 24 - Nicolaus Copernicus dies. (1543)
- May 26 - Nicholas II becomes the last Tsar of Imperial Russia. (1896)
- May 31 - Occultist and author Éliphas Lévi dies. (1875)