The Wheel of the Year is an annual cycle of seasonal festivals, observed by a range of modern pagans, marking the year's chief solar events (solstices and equinoxes) and the midpoints between them. British neopagans crafted the Wheel of the Year in the mid-20th century, combining the four solar events ("quarter days") marked by many European peoples, with the four seasonal festivals ("cross-quarter days") 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. Observing the cycle of the seasons has been important to many people, both ancient and modern. Modern pagan festivals that rely on the Wheel are based to varying degrees on folk traditions, regardless of actual historical pagan practices. Some Wiccans use the term sabbat () to refer to each festival. ...