1569 in science

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

• A lunar eclipse is observed by Cornelius Gemma.

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

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

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

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

• Cornelius Gemma publishes De arte cyclognomica in Antwerp.

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