1569 in science

The year 1569 in science and technology included a number of events, some of which are listed here.

Astronomy

 * A lunar eclipse is observed by Cornelius Gemma.

Cartography

 * The Mercator projection is first used in Gerardus Mercator's world map Nova et Aucta Orbis Terrae Descriptio ad Usum Navigantium Emendata.

Chemistry

 * Paracelsus' major text on chemistry, Archidoxa, is published posthumously in Kraków in Latin translation by Adam Schröter.

Physiology and medicine

 * Girolamo Mercuriale publishes De Arte Gymnastica in Venice, covering the ancient history and current practice of physical exercise.

Economics

 * Tomás de Mercado publishes De los tratos de India y tratantes en ellas, linking the Price revolution to the influx of American gold.

Publications

 * Cornelius Gemma publishes De arte cyclognomica in Antwerp.

Births

 * Muzio Oddi, Italian mathematician (died 1639)
 * 2 November – Epifanio Ferdinando, Italian physician (died 1638)