On November 21

The Belgian government imposed a four-day security lockdown in Brussels based on information about potential terrorist attacks.

A remote-controlled bomb exploded on a bus in Tel Aviv, Israel, injuring at least 28 people on board.

An explosion in a coal mine in Heilongjiang, China, killed 108 miners.

A fire broke out at the MGM Grand Hotel on the Las Vegas Strip in Paradise, Nevada, killing 85 people and injuring 650 others.

"God Defend New Zealand" became New Zealand's second national anthem, on equal standing with "God Save the King", which had been the traditional anthem since 1840.

Bombs exploded in two pubs in central Birmingham, England, killing 21 people and leading to the imprisonment of six people who were later exonerated.

Vietnam War: American forces raided the North Vietnamese Sơn Tây prison camp in an attempt to rescue 61 American POWs who were thought to be held there.

The Verrazzano-Narrows Bridge, connecting Staten Island and Brooklyn in New York City, opened to traffic as the longest suspension bridge in the world at the time.

La Ronde (pictured), the first revolving restaurant in the United States, was inaugurated.

American disc jockey Alan Freed (pictured), who popularized the term rock and roll, was fired from WABC-AM for his role in the payola scandal.

Two trains collided near Valemount, Canada, killing 21 people; the subsequent trial brought future prime minister John Diefenbaker to greater political attention.

Manzanar (pictured), a camp in California for the internment of Japanese Americans during World War II, was closed.

Rebecca Latimer Felton became the first woman to serve in the United States Senate, albeit for only one day.

Irish War of Independence: On Bloody Sunday in Dublin, the IRA assassinated a group of British intelligence agents, and British forces killed 14 civilians at a Gaelic football match at Croke Park.

First Sino-Japanese War: After capturing the Chinese city of Port Arthur, the Japanese army began a massacre of the city's soldiers and civilians.

Thomas Edison announced his invention of the phonograph, a device able to record and play sound.

The Mayflower Compact, the first governing document of the Plymouth Colony, was signed by 41 of the Mayflower's passengers while the ship was anchored in what is now Provincetown Harbor.

Turco-Mongol conqueror Timur captured and sacked the Georgian capital Tbilisi and forced King Bagrat V to convert to Islam.