1581 in science
The year 1581 in science and technology included the following notable events.
Geophysics
- Robert Norman publishes his observations of magnetic dip in .
Medicine
- Roderigo Lopez becomes the physician-in-chief to Queen Elizabeth I of England until his death by execution, having been found guilty of plotting to poison her.
Births
- October 9 – Claude Gaspard Bachet de Méziriac, French mathematician
- Edmund Gunter, English mathematician.approximate – Gaspare Aselli, Italian anatomist.