Fifty years ago on April 22, the first Earth Day was held. It was originally conceived as a student teach-in, which is why April 22 was chosen - it was a weekday between spring break and final exams. However, the potential for it to be an event for all ages was quickly realized, and the first Earth Day brought out 20 million Americans. Since then, Earth Day has gone global and is widely recognized as the largest secular observance in the world, with more than a billion participants.

At Ivy Creek Foundation, we celebrate Earth Day every day by pursuing our vision: To inspire awareness of human interaction with our environment and engage others in stewardship of our natural and cultural history. How have you observed Earth Day this year?

Photo credit: Bob Gore