M. C. Escher was born on this date in 1898. He is the artist famous for painting intricate visual puzzles like "Drawing Hands," "Waterfall," and the looping stairs in "Ascending and Descending." My tie's pattern is based on his tessellations of flying fish. A tessellation is a drawing that fills the plane with repeating geometric units, like interlocking puzzle pieces or tiles on a floor. I think Escher would be very happy with the "loopiness" of the Trinity knot!