Today in History: December 18, Donald Trump impeached for the first time

On Dec. 18, 2019, the U.S. House impeached President Donald Trump on two charges, sending his case to the Senate for trial (It was the first of two Trump impeachment trials that would end in acquittal). The articles of impeachment accused him of abuse of power to investigate Democratic rival Joe Biden before the 2020 election and obstructing Congress’ investigation of the matter.

Also on this date:

In 1865, the 13th Amendment to the Constitution abolishing slavery was declared in effect by Secretary of State William H. Seward.

In 1892, Peter Ilyich Tchaikovsky’s ballet “The Nutcracker” publicly premiered in St. Petersburg, Russia; although now considered a classic, it received a generally negative reception from critics.

In 1916, the Battle of Verdun, World War I's longest at 10 months, ended between French and German forces; it led to nearly 1 million casualties.

In 1917, Congress proposed an amendment to the U.S. Constitution prohibiting alcohol; the 18th Amendment was declared ratified in 1919 (Prohibition was repealed in 1933 by the 21st Amendment).

In 1957, the world's first commercial nuclear power plant, the Shippingport Atomic Power Station in Pennsylvania, began supplying electricity to customers. (It was taken out of service in 1982.)

In 1972, with peace talks stalled, the U.S. launched Operation Linebacker II, its heaviest bombing of North Vietnam in the Vietnam War. The operation lasted 11 days (an agreement known as the Paris Peace Accords was signed in January 1973.

In 2011, the last convoy of heavily armored U.S. troops left Iraq in the final moments of a nearly nine-year war.

In 2022, Argentina beat France 4-2 in a penalty shootout to claim a third World Cup, the first for star Lionel Messi.

In 2023, Pope Francis approved letting Catholic priests bless same-sex couples under certain conditions, a radical shift in policy that aimed to make the church more inclusive while maintaining its strict ban on gay marriage.

Today’s Birthdays: Chef Jacques Pépin is 90. Rock musician Keith Richards is 82. Filmmaker Alan Rudolph is 82. Filmmaker Steven Spielberg is 79. Filmmaker Gillian Armstrong is 75. Actor Brad Pitt is 62. Singer Alejandro Sanz is 57. Tennis Hall of Famer Arantxa Sanchez Vicario is 54. Pop singer Sia is 50. Country singer-songwriter Randy Houser is 50. Actor Katie Holmes is 47. Singer Christina Aguilera is 45. MLB outfielder Ronald Acuña Jr. is 28. NFL quarterback Jayden Daniels is 25. Singer Billie Eilish is 24.