New York Times: "Titanic sinks 4 hours after hitting an iceberg" [April 16, 1912]

This is one of the few accurate headlines the day after the sinking of the Titanic. Journalists in several other papers were still in denial that the Titanic will not sink: The Daily Mirror reported, "Everyone is safe", and the Daily Mail, "No lives lost".
Daily Mail: "Greatest Crash In Wall Streets History" [October 25, 1929]
This is one of the few accurate headlines the day after the sinking of the Titanic. Journalists in several other papers were still in denial that the Titanic will not sink: The Daily Mirror reported, "Everyone is safe", and the Daily Mail, "No lives lost".
Daily Mail: "Greatest Crash In Wall Streets History" [October 25, 1929]
Wall Street 1929, triggered by uncertainty resulting stock price fell, it was the worst in U.S. history. On October 24, more than 12.9 million shares traded by investors that panicked.
The News Chronicle: "Hitler Dead" [May 2, 1945]
On May 2, 1945, The News Chronicle, that later became the Daily Mail, published a bold headline. At that time, no one was sure if the news is true. . The accompanying article claimed that Hitler had been killed in action, although it later transpired he had committed suicide in a bunker under Chancery in Berlin.
Daily Mail: "Ve-Day- It's All Over" [May 8, 1945]
This headline appeared on the World War II Allies accepted Nazi / German surrender. It marked the end of World War II and Adolf Hitler's Third Reich.
Chicago Tribune: "Assasin Kills Kennedy Lyndon Johnson Sworn In"[November 22, 1963]
John F. Kennedy, the 35th President of the United States, was assassinated in Dallas, Texas. Five years later, his brother Robert Kennedy was shot dead in Los Angeles hotel.
Daily News: "Martin King Shot to Death: Gunned Down In Memphis" [April 5, 1968]
This shocking news is printed after the Martin Luther King, Jr. was shot and killed on the second floor lobby Lorraine Motel, Memphis, Tennessee. He was 39-years.
Evening Standard: "The First Footstep" [July 21, 1969]
Neil Armstrong became the first man stepped on the moon. When he hit the ground, he l said: "That's one small step for man, one giant leap for mankind."
The New York Times: "Nixon Resigns" [August 9, 1974]
President Richard Nixon, fearing the pressure after the Watergate scandal, became the only president ever to resign from office. Gerald Ford later forgave him, but he never really forgiven.
The Sun: "King Elvis Died" [August 16, 1977]
On August 16, 1977, "The King of Rock 'n' Roll" was found dead on the bathroom floor.
Los Angeles Times: "The Beatles John Lennon Slain" [December 9, 1980]
On the day prior to this headline appeared, John Lennon was shot in the back four times by Mark David Chapman, a fan who had been stalking him for 3 months.
City Press: "Mandela Goes Free Today" [February 11, 1990]
Nelson Mandela was released from prison, where he languished for 20 years. On 27 April 1994, Mandela and the ANC won multi-racial elections.
Daily News: "Diana is Dead" [Augustus 31, 1997]
Princess Diana died after the Mercedes Benz S280 crashed into a pillar in the Pont de l'Alma tunnel, Paris. Friends with Dodi Al-Fayed was also killed in the collision.
Daily Telegraph: "War On America" [September 12, 2001]
On 12 September 2001, only one story dominating the headlines. On the previous day, terrorists hijacked four commercial passenger jet airliners, crashing two of them into the Twin Towers and a third into the Pentagon. "American War" was chosen as the title of the most memorable of the last 100 years.
Times Of India: "We Saw The Sea Coming, We All Ran. But God Saves Little "[Desember 28, 2004]
On December 26, 2004, an earthquake off the west coast of Sumatra, Indonesia, triggering a tsunami that killed more than 225,000 people in 11 countries.
New York Times: "Racila Barrier Falls In Decisive Victory" [November 5, 2008]
Barack Obama, promising change for the United States, defeating John McCain in the 2008 presidential election into a black president of the United States. He then inaugurated on January 20, 2009.