Theodore M. Porter is Distinguished Professor of History at the University of California, Los Angeles. His books include Karl Pearson: The Scientific Life in a Statistical Age, Trust in Numbers: The Pursuit of Objectivity in Science and Public Life, and The Rise of Statistical Thinking, 1820-1900.
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In the early 1800s, a century before there was any concept of the gene, physicians in insane asylums began to record causes of madness in their admission books. Almost from the beginning, they pointed to heredity as the most important of these causes. As ... SEE MORE