Evolution is the commonly accepted scientific theory that explains how all of the different kinds of life developed from a simple beginning. Intelligent design is another explanation saying that life was developed by a smarter being. A school district in Dover, Pennsylvania wanted to tell the students about intelligent design. They wanted teachers to tell their students about intelligent design at the same time they taught evolution. They were using a text book from the Foundation for Thought and Ethics called "Of Pandas and People" written by Percival Davis and Dean Kenyon. This book says it presents the scientific evidence for intelligent design and why it makes more sense than evolution. Tammy Kitzmiller and ten other parents did not want their children being taught intelligent design. They complained to the government, and a trial was held.