Surpassing even Carrie's wrath, on April 3, 1974,148 tornadoes devastate 13 U.S. states, killing 330 people and injuring over 5,000.  The pocket calculator becomes a household staple with the introduction of LSI chips.  Following a famine which killed over 200,000 people, Ethiopians overthrow their Emperor, Haile Selassie. Stephen Hawking proposes the theory that radiation could escape the pull of a black hole in contradiciton to Einstein's theory that nothing could escape. India tests its first nuclear bomb. Patricia Hearst, daughter of newspaper mogul, Randolph Hearst, is kidnapped by the Symbionese Liberation Army.  President Richard Nixon resigns in disgrace.