Use of the term "creationism" versus "intelligent design" in the various editions of Of Pandas and People
Intelligent design (often referred to as "design", or "ID") maintains that certain aspects of the physical world, and more specifically life, show signs of having been designed, and hence were designed, by an intelligent being (usually, but not always, the God of the Christian religion). The concept is older than science, but only since the 1980s has the term "intelligent design" been in circulation. Supporters of intelligent design usually claim that the theory is not based on Christian creationism, although this link has been proved by the existence of the Wedge Document. Attempts to have ID taught in public schools have been defeated in court, and science papers proposing a "designer" cannot get past peer review. Intelligent design has been criticised for its failure to state what mechanism drives it, its lack of falsifiability, and other problems.