Welcome to Twofer on December 20
Today is

National GO CAROLING DAY
as well as
National Sangria Day
Partake in the Sangria celebration and go caroling.
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On December 20 in 1192, Richard the Lionhearted was captured near Vienna by Leopold of Austria on his way home from the Third Crusade (released 1194).

Also on December 20, in 1879 Thomas Edison privately demonstrated his incandescent light bulb at Menlo Park, New Jersey.
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Saturday trivia is:
Who owns the Patent to Google’s original search algorithm?
Invented by Douglas Engelbart in 1963, the first computer mouse was made from what material?
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