10Whitaker, Alex. "Beltany" Ancient Wisdom. Web. 04 Feb. 2016. <http://www.ancient-wisdom.com/irelandbeltany.htm>.
"Bealtaine was one of the four major festivals of ancient Ireland and marked the beginning of summer, the other festivals were: Lugnasadh, which was celebrated at the start of August and marked the beginning of Autumn); Samhain (the origin of today’s Halloween) marked the beginning of Winter; and Imbolc which was normally celebrated in early February and marked the beginning of Spring." (http://timetravelireland.blogspot.com/2013/10/beltany-stone-circle-county-donegal.html)