06/21/2011 04:51 pm ET Updated Aug 21, 2011

A History of Summer Solstice Celebrations

From the festival of madness to the festival of love, from harvest celebrations to a day of religious observance, the summer solstice has worn many hats. The one thing binding all those different avatars together, though, is that the day is supposed to remind us of nature's awesome power. It's a testimony to the vastness of the universe, to the strength of the sun and to our incredible insignificance.

Click on the slideshow below to find out more about the spiritual history of the longest day of the year.