1595 in science

Chemistry

• Andreas Libavius publishes Opera omnia medico-chymica.

  Exploration

• July 21 – A Spanish expedition led by Álvaro de Mendaña de Neira makes the first European landing in Polynesia, on the Marquesas Islands.
• Sir Walter Raleigh explores Guyana and eastern Venezuela.

  Mathematics

• Bartholomaeus Pitiscus publishes Trigonometria: sive de solutione triangulorum tractatus brevis et perspicuus in Heidelberg, introducing the term trigonometry to Western European languages.

  Medicine

• 1595–1596 – Scipione Mercurio publishes La commare o riccoglitrice, the first text to advocate a Caesarean section on the living in cases of a contracted long pelvis.

  Technology

• Hull of first fluyt laid in the Dutch Republic.

  Births

• June 13 – Jan Marek Marci, Bohemian physician.
• Cornelius Vermuyden, Dutch drainage engineer.

  Deaths

• August 24 – Thomas Digges, English astronomer.
• November 12 – Sir John Hawkins, English navigator .