On This Day In History On This Day In History: Mathematician And Astronomer Simon Marius Independently Rediscovered Andromeda Galaxy – On Dec 15, 1612MessageToEagle.com | December 15, 2016 MessageToEagle.com – On December 15, 1612, Simon Marius (1573 – 1624) mathematician and astronomer, independently rediscovered the “Nebula in the Girdle of Andromeda”, actually the Andromeda Galaxy (M31). Read More