Based on true events, Predictor is the real-life story of Margaret Crane who, in 1967, defied all odds and expectations to become the inventor of the first home pregnancy test. Support American Theatre: a just and thriving theatre ecology begins with information for all. Please join us in this mission by making a donation to our publisher, Theatre Communications Group. When you support American Theatre magazine and TCG, you support a long legacy of quality nonprofit arts journalism. Click here to make your fully tax-deductible donation today!