The Isis-Urania Temple of the Golden Dawn is founded. In 1900 the group will separate from Hermetic Order of the Golden Dawn and just be the Isis-Urania Temple. The Hermetic Order of the Golden Dawn is a group that believed in occult magic and esoteric philosophy.
Many famous people are, at one time or another, active in the group. It is active in the late 19th and early 20th centuries, primarily in Britain, but it's influences continue through to the 21st century in various occult groups and Wicca.