For centuries the tomato had a bad name. Colonial Americans thought tomatoes were poisonous. ... Prejudice against the tomato persisted for a long time in the United States. Although Thomas Jefferson planted them in his garden in 1781 and the French inhabitants of New Orleans were raising tomatoes in the late 18th century, the rest of the country waited until, it is said, one day in 1820. On that day a Col. Robert Gibbon Johnson stood on the steps of the Salem County (N.J.) courthouse, ate a tomato in full view of an incredulous crowd of spectators, and didn't drop dead.