George Cayley, English engineer and politician (died 1857)

Sir George Cayley, 6th Baronet was an English engineer, inventor, and aviator. He is one of the most important people in the history of aeronautics. Many consider him to be the first true scientific aerial investigator and the first person to understand the underlying principles and forces of flight and the creator of the wire wheel.

December 27 is the 361st day of the year in the Gregorian calendar; four days remain until the end of the year.