1775 – First official US flag raised (Union Union Flag) aboard naval vessel USS Alfred.
1911 – Willis Carrier presents his influential “Rational Psychometric Formulae” on air conditioning to the American Society of Mechanical Engineers.
1923 – First Congressional open session broadcast via radio (Washington, D.C.)
1931 – Alka Seltzer goes on sale.
1944 – Temporary merger of 2 NFL teams, the Pittsburgh Steelers and Chicago Cardinals, dissolves at finish of season: WWII ends before start of 1945 season, so both teams resume normal operations.
1948 – 1st US woman army officer not in medical corps sworn in.
1950 – Paul Harvey begins his national radio broadcast.
1953 – “In the Jailhouse Now” single recorded by Webb Pierce (Billboard Song of the Year, 1955)
1956 – Basketball icon Wilt Chamberlain makes his much anticipated varsity debut; scores 52 points and grabs 31 rebounds, breaking both all-time Kansas records in an 87-69 win against Northwestern.
1964 – Police arrests 800 sit-in students at University of California at Berkeley.
1971 – US President Richard Nixon commutes Jimmy Hoffa’s jail term.
1982 – 77 degrees F highest December temperature every recorded in Cleveland, Ohio.
1985 – 23rd Shuttle Mission (61-B)-Atlantis 2-lands at Edwards AFB.
1997 – Golden State Warriors terminates guard Latrell Sprewell’s four-year, $32 million NBA contract for attacking coach P.J. Carlesimo.
2005 – 1st ACC Football Championship Game: #22 Florida State beats #5 Virginia Tech, 27-22.
2015 – US Defense Secretary Ash Carter announces all combat roles in US armed forces will be opened to women.
2016 – US Army decides it will not allow an oil pipeline to be built in North Dakota, after months of protests by The Standing Rock Sioux Tribe.
2019 – Kamala Harris ends her campaign to be the Democratic candidate for President.
2019 – Google co-founders Larry Page and Sergey Brin announce they are stepping down from roles at parent company Alphabet, Sundar Pichai to become head of both.
2020 – “I actually believe they’re going to be the most difficult time in the public health history of this nation,” warns Dr. Robert Redford, head of US CDC about the months ahead with COVID-19.