Stamped from the Beginning: The Definitive History of Racist Ideas in America

by Ibram X. Kendi

Fifteen years prior, Mather had asked Onesimus one of the standard questions that Boston slaveholders asked new house slaves—Have you had smallpox? “Yes and no,” Onesimus answered. He explained how in Africa before his enslavement, a tiny amount of pus from a smallpox victim had been scraped into his skin with a thorn, following a practice hundreds of years old that resulted in building up healthy recipients’ immunities to the disease. This form of inoculation—a precursor to modern vaccination—was an innovative practice that prevented untold numbers of deaths in West Africa and on disease-ridden slave ships to ports throughout the Atlantic. Racist European scientists at first refused to recognize that African physicians could have made such advances. Indeed, it would take several decades and many more deaths before British physician Edward Jenner, the so-called father of immunology, validated inoculation.