They exist and they are all around. You just need to look carefully to see them. Happy New Year: may there be unicorns in yours.

(As previously: most of what follows below was first collected in a continuing twitter thread; any comments without attribution are mine.)

But seriously: by which I mean, medievally-seriously:

It doesn’t get more serious than the British Library, their curators, and their Medieval Manuscripts Blog.

“How many horns does a unicorn have?” (2 November 2017):

“Unicorn cookbook found at the British Library” (1 April 2012):