A Latin expression for “common era” (abbreviated as "e.v.") usually used after a date to indicate a time following the year zero. A non-religious replacement for AD.

Popularly used by Thelemites to identify dates as related to the Gregorian calendar rather than the Thelemic calendar which begins in 1904, the year Aleister Crowley received the Book of the Law.

Anciently many calendars were based around the movement of the Moon. Most such lunar calendars became obsolete and were replaced by solar calendars. Even so, some ancient holidays are reckoned according to lunar calendars. As a result, some holidays and festivals move their dates from year to year. They are known as “movable feasts.”

Latin for "midheaven."

According to followers of Thelema, the philosophy of occultist Aleister Crowley, it is the age that began in 1904 with the reception of The Book of the Law.

March 21. Also called the vernal equinox. See: equinox.

See: Solstice

An alchemical year is not the same as a normal calendar year. Rather, it refers to the time necessary to complete an alchemical project such as raising gold from a lower element. It is called a year because there are four basic levels or grades to the work (with many sublevels), similar to the four seasons of a calendar year.

A Sanskrit term meaning epoch or age. There are said to be four yugas of varying duration: Satya, Treta, Dvapara and Kali. We are currently living in the Kali Yuga, which is believed to have begun in 3102 b.c.e. It will last for 432,000 years.