1693 in science
# 1693 in science

The year 1693 in science and technology involved some significant events.

## Actuarial science

* Edmond Halley publishes an article in Philosophical Transactions of the Royal Society on life annuities featuring a life table constructed on the basis of statistics from Breslau provided by Caspar Neumann.

## Botany

* Publication of Charles Plumier's first work, Description des plantes de l'Amérique, in Paris, principally devoted to ferns.

## Mathematics

* Bernard Frénicle de Bessy's Des quarrez ou tables magiques, a treatise on magic squares, is published posthumously, describing all 880 essentially different normal magic squares of order 4.

## Physiology and medicine

* Flemish anatomist Philip Verheyen, in his widely used text Corporis Humani Anatomia, is the first to record the name of the Achilles tendon.

## Births

* March – James Bradley, Astronomer Royal (died 1762)

## Deaths

* February 18 – Elias Tillandz, Swedish physician and botanist in Finland (born 1640)
* October 4 – Sir Thomas Clayton, English physician, academic and politician (born c.1612)
* December 22 – Elisabeth Hevelius, Danzig astronomer (born 1647)
