1545 in science
The year 1545 in science and technology involved some significant events.
Botany
- Orto botanico di Padova and di Firenze botanical gardens established.
Mathematics
- Gerolamo Cardano publishes his algebra text Ars Magna, including the first published solutions to cubic and quartic equations.
Navigation
- Pedro de Medina's Arte de navegar is published in Valladolid, the first treatise on the art of navigation to be published in Europe.
Physiology and medicine
- Charles Estienne publishes De dissectione partium corporis humani, libri tres, including a description of the venous valves of the liver.
- Ambroise Paré publishes his first book, a treatise on battlefield medicine, La méthode de traicter les playes faictes par hacquebutes et aultres bastons à feu et de celles qui sont faictes par flèches, dardz et semblables, in Paris.
- Thomas Phaer publishes The Boke of Chyldren, the first book on paediatrics written in English.
Zoology
- The giant squid is first seen.
Births
- January 11 – Guidobaldo del Monte, Italian mathematician
- March – Gaspare Tagliacozzi, Italian anatomist
- John Gerard, English botanist