Video: 'HAROLD HOLT'

(Sunday, December 17, 1967, 12:30 p.m. AEST) — Australian Prime Minister Harold Holt, 59, disappeared today while swimming in the ocean at remote Cheviot Beach, near his resort home in Portsea, Victoria.

Holt’s disappearance sparked “one of the largest search operations in Australian history,” but no trace of his body was ever found.

A memorial service for Holt was held at St Paul’s Cathedral in Melbourne on Dec. 22, 1967, and attended by numerous world leaders, including U.S. President Lyndon B. Johnson.

Video: 'The Day Harold Holt Went Missing 17 Dec 1967'

Video: 'Great White Fleet - Decades TV Network'

(Monday, December 16, 1907, 10:00 a.m. local time) — President Theodore Roosevelt was on hand today at Hampton Roads, Virginia, when 16 U.S. Navy battleships with 14,000 sailors and marines, which came to be known as the Great White Fleet, set sail today on a 14-month, 43,000-mile round-the-world voyage to demonstrate American sea power. Continue reading ‘Great White Fleet’ sets sail 110 years ago this hour #OnThisDay #OTD (Dec 16 1907) →

Video: ‘ADEA – Age Discrimination in Employment Act’ (4 videos)

(Friday, December 15, 1967, 1:32 p.m. EST) — The Age Discrimination in Employment Act of 1967, a labor law that forbids employment discrimination against anyone at least 40 years of age in the United States, was signed into law today by President Lyndon B. Johnson. Continue reading Age Discrimination in Employment Act of 1967 signed into law 50 years ago this hour #OnThisDay #OTD (Dec 15 1967) →

(Tuesday, December 15, 1987; during the 1988 Democratic presidential primaries) — Declaring “let the people decide,” former Senator Gary Hart of Colorado announced his candidacy for the Democratic nomination for the presidency for the second time today, having dropped out of the race in May 1987 following news reports that he had spent a weekend with Donna Rice, a 29-year-old actress and model (click here to watch the video).

Video: 'December 1997: Kyoto Protocol adopted'

(Thursday, December 11, 1997, at approximately 1:00 p.m. JST) — The Kyoto Protocol, an international treaty that commits State Parties to reduce greenhouse gas emissions based on the scientific consensus that global warming is occurring and it is extremely likely that human-made CO2 emissions have predominantly caused it, was approved today by more than 150 countries at a global warming conference in Kyoto, Japan. Continue reading Kyoto Protocol adopted to combat climate change 20 years ago this hour #OnThisDay #OTD (Dec 11 1997) →

Video: 'Top 10 Things To Do In Mississippi | Southern Living'

(Wednesday, December 10, 1817) — President James Monroe today signed a congressional resolution that admitted the western portion of Mississippi Territory as the State of Mississippi, located in the Southern United States, with part of its southern border formed by the Gulf of Mexico and its western border formed by the Mississippi River, as the 20th state of the Union. Continue reading Mississippi admitted as 20th state of the Union 200 years ago #OnThisDay #OTD (Dec 10 1817) →

Video: '1967 12 12 Lynda And Charles Marriage'

(Saturday, December 9, 1967, 4:00 p.m. EST) — In a rare wedding ceremony held in the White House, Lynda Bird Johnson, 23, the elder of the two daughters of U.S. President Lyndon B. Johnson and First Lady Lady Bird Johnson, married U.S. Marine Corps Captain (and future Virginia Governor) Charles S. Robb, 28, today in a private ceremony in the East Room. Continue reading First daughter Lynda Bird Johnson weds in White House 50 years ago this hour #OnThisDay #OTD (Dec 9 1967) →