This installment in a series on science and technology in world history begins in the fourteenth century, explaining the origin and nature of scientific methodology and the relation of science to religion, philosophy, military history, economics and technology. Specific topics covered include the Black Death, the Little Ice Age, the invention of the printing press, Martin Luther and the Reformation, the birth of modern medicine, the Copernican Revolution, Galileo, Kepler, Isaac Newton, and the Scientific Revolution.