"The eight sabbats are defined by the principal points in the changing relationship of the Sun and the Earth over the year. These points are measured by the easily observable point of the sun's daily emergence on the eastern horizon. Through the spring, as the days grow longer, the sun appears to rise at a point slightly further north each day and then as the days reach their longest, it appears to pause and then start moving south. As the shortest day of the year is reached, it again pauses and starts north. The points of the pauses (the solstices), and half way between them, when the length of the day and night are equal (the equinoxes, formed four easily marked points in the years. They, and the four additional points halfway between them that mark points in the planting and harvest process, became the eight evenly spaced holidays of the ancient world."
Source of Sabbat Definiton
Sabbat Festivals:
CLUBS
Special thanks to
[link]
[link]