1619 in science
The year 1619 in science and technology involved some significant events.
Astronomy
- Publication of Johannes Kepler's third law of planetary motion in his Harmonices Mundi. He also recognises the duality of convex polyhedra.
- Publication of the Jesuit Giuseppe Biancani's Sphaera mundi, seu cosmographia demonstrativa, ac facili methodo tradita in Bologna.
Biochemistry
- Lactose is discovered by Fabriccio Bartoletti; the word lactose comes from the Latin word lac which means "milk".
Exploration
- In North America, the Churchill River is discovered by Danish explorer Jens Munk, and it will be used for over 100 years as a trading route of the Hudson's Bay Company from their fort at its mouth to the interior.
- Frederick de Houtman and Jans van Edel discover the Houtman Abrolhos islands.
Medicine
- Dermod O'Meara's text on genetic disorders, De Moribus: Pathologia Haereditaria Generalis is published in Dublin, the first medical text published in Ireland.
Metallurgy
- Sir Basil Brooke produces steel using a reverbatory furnace in Coalbrookdale, England.
Births
probable date – Daniel Whistler, English physicianDeaths
- May 21 – Hieronymus Fabricius, Italian anatomist and embryologist
- September – Hans Lippershey, Dutch lensmaker, credited with inventing the telescope in 1608
- Olivier de Serres, French soil scientist
- Caterina Vitale, Maltese chemist