1. Maine became the 23rd state in the United States on December 19, 1820. After years of political maneuvering and debate, Maine was finally admitted to the Union as part of the Missouri Compromise.

2. On December 19, 1866, Augusta native and Civil War hero Joshua Chamberlain was elected as Maine's 32nd governor. Chamberlain had previously served as a brigadier general in the Union Army and was known for his bravery and leadership during the Battle of Gettysburg.

3. The worst blizzard in Maine's history struck on December 19, 1978. Dubbed the "Blizzard of '78," the storm dumped over two feet of snow on the state and caused widespread power outages and travel disruptions.

4. Maine author and poet Edna St. Vincent Millay was born on December 19, 1892. Millay was known for her lyrical poetry and feminist themes, and she won the Pulitzer Prize for Poetry in 1923 for her collection "The Ballad of the Harp-Weaver."

5. The first successful transatlantic radio transmission was sent from Maine to England on December 19, 1901. Guglielmo Marconi, an Italian inventor and electrical engineer, sent the message from South Wellfleet, Massachusetts to Poldhu, Cornwall, UK, using a transmitter and antenna he had constructed on the Cape Cod coast. The transmission marked a major milestone in the development of wireless communication technology.