Template:Are You Sure/December 22

• ... that Cesare Cremonini is now remembered as an infamous side actor of the Galileo affair, despite being one of the greatest philosophers in his time?
• ... that mathematician Johann Friedrich Pfaff's work on partial differential equations became part of the theory of differential forms?
• ... that a lecture in 1920 by William Blake's monster ended in a riot?
  

  William Blake's monster takes the stage.