15 June 16

Graphic artist M. C. Escher was born on 17 June 1898. Since that's a Friday this year (with no tie for me), I'm celebrating two days early with this "flying fish" tessellation tie. As others have noted, we are currently in a sequence of palindromic calendar dates (6-10-16, 6-11-16, 6-12-16 and so on) whose internal mirroring symmetry would please Escher. And now you can look forward to the similar sequence in July next year.