A description in Pynchon's Against the Day of William Rowan Hamilton's October 16th, 1843, discovery of quaterions—
"The moment, of course, is timeless. No beginning, no end, no duration, the light in eternal descent, not the result of conscious thought but fallen onto Hamilton, if not from some Divine source then at least when the watchdogs of Victorian pessimism were sleeping too soundly to sense, much less frighten off, the watchful scavengers of Epiphany."
New York Lottery yesterday, on Hermann Weyl's birthday— Midday 106, Evening 865.
Here 106 suggests 1/06, the date of Epiphany, and 865 turns out to be the title number of Weyl's Symmetry at Princeton University Press—
http://press.princeton.edu/titles/865.html.
Symmetry and quaternions are, of course, closely related.