The event is primarily the Celtic fire festivity, midsummer representing the center of summer, and also the shortening from the days on the gradual goal to winter months. Midsummer is traditionally celebrated in either the 23rd or even 24th of June, even though the longest morning actually comes on the Twenty first of July. The importance of the afternoon to our forebears can be tracked back many thousands of a long time, and many gemstone circles along with other ancient monuments are aligned to the sunrise in Midsummer's Day. One of the most famous place is that in Stonehenge, where the sunlight rises in the heel gemstone, framed through the giant trilithons upon Midsummer morning.