The Wheel of the Year is an annual cycle of seasonal festivals observed by modern pagans, marking the year's chief solar events and the midpoints between them. British neopagans crafted it in the mid-20th century by combining the four solar events marked by many European peoples with the four seasonal festivals celebrated by Insular Celtic peoples. Different paths of modern paganism may vary regarding the precise timing of each celebration based on such distinctions as the lunar phase and geographic hemisphere. The festivals are steeped in solar mythology and symbolism, and many Wiccan esbats are commonly found on lunar cycles. Together, they represent the most common celebrations in Wiccan-influenced forms of modern paganism, especially in Neopagan witchcraft groups. https://en.wikipedia.org/wiki/Wheel_of_the_Year