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The year 1581 in
science Science is a systematic discipline that builds and organises knowledge in the form of testable hypotheses and predictions about the universe. Modern science is typically divided into twoor threemajor branches: the natural sciences, which stu ...
and
technology Technology is the application of Conceptual model, conceptual knowledge to achieve practical goals, especially in a reproducible way. The word ''technology'' can also mean the products resulting from such efforts, including both tangible too ...
included the following notable events.


Geophysics

* Robert Norman publishes his observations of
magnetic dip Magnetic dip, dip angle, or magnetic inclination is the angle made with the horizontal by Earth's magnetic field, Earth's magnetic field lines. This angle varies at different points on Earth's surface. Positive values of inclination indicate t ...
in
The Newe Attractive
' (
London London is the Capital city, capital and List of urban areas in the United Kingdom, largest city of both England and the United Kingdom, with a population of in . London metropolitan area, Its wider metropolitan area is the largest in Wester ...
).


Medicine

*
Roderigo Lopez Roderigo Lopes (c. 1517 – 7 June 1594) was a Portuguese physician who served as a physician-in-chief to Queen Elizabeth I of England from 1581 until his death by execution, having been found guilty of plotting to poison her. A Portuguese ''c ...
becomes the physician-in-chief to
Queen Elizabeth I of England Elizabeth I (7 September 153324 March 1603) was List of English monarchs, Queen of England and List of Irish monarchs, Ireland from 17 November 1558 until her death in 1603. She was the last and longest reigning monarch of the House of Tudo ...
until his death by execution, having been found guilty of plotting to poison her.


Births

* October 9 –
Claude Gaspard Bachet de Méziriac Claude may refer to: People and fictional characters * Claude (given name), a list of people and fictional characters * Claude (surname), a list of people * Claude Callegari (1962–2021), English Arsenal supporter * Claude Debussy (1862–1918), ...
, French
mathematician A mathematician is someone who uses an extensive knowledge of mathematics in their work, typically to solve mathematical problems. Mathematicians are concerned with numbers, data, quantity, mathematical structure, structure, space, Mathematica ...
(died
1638 Events January–March * January 4 **A naval battle takes place in the Indian Ocean off the coast of Goa in South India as a Netherlands fleet commanded by Admiral Adam Westerwolt decimates the Portuguese fleet. **A fleet of 80 Spanis ...
) *
Edmund Gunter Edmund Gunter (158110 December 1626), was an English clergyman, mathematician, geometer and astronomer of Welsh descent. He is best remembered for his mathematical contributions, which include the invention of the Gunter's chain, the #Gunter's q ...
, English mathematician (died
1626 Events January–March * January 7 – Polish–Swedish War (1625–1629), Polish-Swedish War: Battle of Wallhof in Latvia – Gustavus Adolphus, King of Sweden, defeats a Polish army. * January 9 – Peter Minuit sail ...
). * ''approximate'' – Gaspare Aselli,
Italian Italian(s) may refer to: * Anything of, from, or related to the people of Italy over the centuries ** Italians, a Romance ethnic group related to or simply a citizen of the Italian Republic or Italian Kingdom ** Italian language, a Romance languag ...
anatomist Anatomy () is the branch of morphology concerned with the study of the internal structure of organisms and their parts. Anatomy is a branch of natural science that deals with the structural organization of living things. It is an old scien ...
(died 1626).


Deaths

*
Agatha Streicher Agatha Streicher (1520–1581), was a German physician who lived her entire life in Ulm. She has been referred to as the first female physician in Germany. Streicher was prohibited from studying medicine at the University because she was a woman. ...
, German physician (born
1520 Year 1520 ( MDXX) was a leap year starting on Sunday of the Julian calendar. Events January–March *January 19 – King Christian II of Denmark and Norway defeats the Swedes, at Lake Åsunden in Sweden. The Swedish regent St ...
).


References

{{reflist 1581 16th century in science 1580s in science