Template:Selected anniversaries/January 15

• 

  1623: Statesman, scientist, and historian Paolo Sarpi dies. He was a proponent of the Copernican system, a friend and patron of Galileo Galilei, and a keen follower of the latest research on anatomy, astronomy, and ballistics at the University of Padua.

• 

  1896: Photographer and journalist Mathew Brady dies. He was one of the first American photographers, best known for his scenes of the Civil War.

• 

  1945: Mathematician Wilhelm Wirtinger dies. He contributed to complex analysis, geometry, algebra, number theory, Lie groups and knot theory.

• 

  1970: Soviet spacecraft Venera 7 modified to run "Hello World" program.

• 

  1974: "Hello World" computer program from 1974 proud to represent "Hello World" computer programs everywhere.

• 

  1975: Techniques from High-energy literature used in "Hello World" research.

• 

  1982: Fantasy Voronoi diagram gambling ring convicted of corrupting lottery ticket data.

• 

  2006: Capsule of dust samples collected by the spacecraft Stardust returns to Earth.