Wednesday links

Lots of ugly Christmas sweaters, instructions for making your own, plus ugly Christmas sweater suits, and here's how to make Ugly Sweater Ornaments.

CIA Declassifies Maps from 75 Years of Surveillance.

The Science Behind Why Dark Winter Days Bum People Out.

T'was the Overnight Before Christmas: The Merry Tale of How Air Cargo Deregulation Led To Amazon. Related (by the underlying poem): T'was the Night Before Kwanzza, and more of Kathy Shaidle's Kwanzaa-debunking collection

A Frog That Freezes and Thaws, Plus More Ways Animals Cope With Cold.

In 1562 Map-Makers Thought America Was Full of Mermaids, Giants, and Dragons.

ICYMI, Monday's links are here, and include Mother Teresa's meeting with then-NYC Mayor Guliani to lobby for a parking permit, the pre-Seinfeld origins of Festivus, Teddy Roosevelt's impact of football, and a new Guinness World Record-setting Rube Goldberg machine that takes 412 steps to light a Christmas tree.