Hey, Firefly fans – It’s Unification Day.
Joshua Norton, Emperor of the United States.
The origins of Kotex.
A Secret World Hidden Beneath the Vineyards of Champagne.
Alexander Graham Bell’s Tetrahedral Kites (1903–9).
ICYMI, Tuesday’s links are here, and include Talk Like a Pirate Day, the 1899 Johnstown flood that killed 2,000 people, and why blue is the world’s favorite color.