Template:Are You Sure/December 31

• ... that mathematician Thomas Joannes Stieltjes' pioneering work on the analytic theory of continued fractions was an important early step towards the theory of Hilbert spaces?

• ... that Episcopal priest Hannibal Goodwin invented and patented a method for making rolled photographic film because he wanted a clear, non-breakable substance on which he could place the images he utilized in his Biblical teachings?

• ... that the reality television show Dennis Paulson of Mars was the first manned interplanetary mission funded entire by social media campaigns?