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Wheaties -

Originally introduced as Washburn's Gold Medal Whole Wheat Flakes in 1924, Wheaties, the "breakfast of champions," emerged as a pioneering brand of American breakfast cereal.

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Greenwich Time Signal -

On February 5, 1924, the Royal Greenwich Observatory in London began broadcasting the hourly time signals known as the Greenwich Time Signal, or the "BBC pips."

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Spiral-bound notebook -

In 1924, the spiral-bound notebook is said to have made its debut. Credit goes to Edward Podosek, an English inventor with numerous patents to his name.

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Death of Vladimir Lenin -

The 100th anniversary of the death of Russian revolutionary and politician Vladimir Lenin falls on January 21, 1924.

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Birth of Marlon Brando -

Marlon Brando, one of the greatest and most influential actors of the 20th century, was born on April 3, 1924.

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Kleenex -

Introduced by Kimberley-Clark on July 12, 1924, Kleenex represented the first marketing of a disposable paper-based facial tissue in the Western world.

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First Winter Olympics -

The first Olympic Winter Games took place from January 25 to February 5, 1924, in Chamonix, France.

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Death of Woodrow Wilson -

Woodrow Wilson, who served as the the 28th president of the United States from 1913 to 1921, passed away 100 years ago on February 3, 1924.

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Birth of George H. W. Bush -

George H. W. Bush, the 41st president of the United States, was born 100 years ago, on June 12, 1924.

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First television images -

John Logie Baird's pioneering implementation of a thallium sulfide (Thalofide) cell allowed the Scottish inventor to become the first person to produce a live, moving, grayscale television image from reflected light. These were the world's first rudimentary TV images, created in February 1924.

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Abolition of the Ottoman Caliphate -

The Ottoman Caliphate, the world's last widely recognized caliphate, was abolished on March 3, 1924. The process was one of Mustafa Kemal Atatürk's sweeping reforms following the replacement of the Ottoman Empire with the Republic of Turkey.

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Adolf Hitler jailed -

Arrested and convicted for high treason for his role in the abortive Beer Hall Putsch the previous year, Adolf Hitler was jailed on April 1. He spent most of 1924 in prison. It was behind bars that he wrote much of 'Mein Kampf.' Hitler would emerge a redefined and recharged politician who ultimately gained control of Germany.

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Wrigley Building opens -

Chicago's iconic Wrigley Building was opened 100 years ago, in May 1924. Located on the Magnificent Mile directly across Michigan Avenue, it stands as a timeless symbol of the city's commercial success.

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Indian Citizenship Act passed -

The Indian Citizenship Act was signed into law by President Calvin Coolidge on June 2, 1924. It conferred citizenship on all Native Americans born within the United States.

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Death of Franz Kafka -

Novelist Franz Kafka, whose work is characterized by anxiety and alienation, died on June 3, 1924. The term "Kafkaesque" has entered the English language to describe absurd situations like those depicted in his writing.

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Gleneagles Hotel opens -

Gleneagles Hotel was inaugurated on June 7, 1924, the opening night celebrated with Scotland's first ever outside broadcast. Gleneagles is famously linked to world-class golf.

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Deaths of George Mallory and Andrew Irvine -

English mountaineers George Mallory and Andrew Irvine were last seen "going strong for the top" of Mount Everest by teammate Noel Odell at 12:50 pm on June 8, 1924. They were never seen alive again. Mallory's body was discovered and identified 75 years later, on May 1, 1999. The whereabouts of Irvine's corpse remain a mystery.

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Death of Joseph Conrad -

Novelist and short story writer Joseph Conrad, whose works include 1899's 'Heart of Darkness,' which provided the inspiration for Francis Ford Coppola's 1979 film 'Apocalypse Now,' died on August 3, 1924.

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Birth of Lauren Bacall -

Acknowledged as one of the most celebrated female stars of classic Hollywood cinema, Lauren Bacall was born on September 16, 1924.

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Birth of Truman Capote -

The 100th anniversary of the birth of American novelist, screenwriter, playwright, and actor Truman Capote falls on September 30. He is especially remembered for the novella 'Breakfast at Tiffany's' (1958) and the true crime novel 'In Cold Blood' (1966).

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Band-Aid -

Though invented in 1920, it wasn't until 1924 that Johnson & Johnson began mass-producing the adhesive bandage brand known as Band-Aid.

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Birth of Jimmy Carter -

Jimmy Carter, the 39th president of the United States, was born in 1924. The former peanut farmer will celebrate his 100th birthday on October 1. He is already the longest-lived president in US history.

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'The Navigator' premieres in New York -

One of the highest-grossing films of 1924 was 'The Navigator,' starring Buster Keaton. The movie premiered on October 13 at the Capitol Theater in New York. Critically praised, Keaton later said that it was his best-ever picture.

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Invention of the electroencephalogram -

In 1924, German psychiatrist Dr. Hans Berger invented the first human electroencephalogram, or the EEG. His announcement was initially met with skepticism, and it was five years later before he actually published his technique for recording the electrical activity of the human brain from the surface of the head.

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First Macy's Thanksgiving Day Parade -

The first Macy's Thanksgiving Day Parade took place in 1924 in New York City. By 1928, giant, helium-filled balloons had replaced live zoo animals along the route.

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More than one galaxy -

On November 23, 1924, American astronomer Edwin Hubble announced his discovery that Andromeda, previously believed to be a nebula, is actually another galaxy. He further stunned the scientific community by declaring that the Milky Way is one of many such galaxies in the universe.

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Death of Giacomo Puccini -

Giacomo Puccini, the Italian composer known for renowned works such as 'La bohème' (1896), 'Tosca' (1900), 'Madama Butterfly' (1904), died on November 29, 1924.

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Birth of Mário Soares -

Often considered the father of Portuguese democracy, Mário Soares, who served as prime minister of Portugal from 1976 to 1978 and from 1983 to 1985, and subsequently as the 17th president of Portugal from 1986 to 1996, was born on December 7, 1924.

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Last Rolls-Royce Silver Ghost -

On December 19, 1924, after close to two decades of production, the last Rolls-Royce Silver Ghost was sold, to a client in London.

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Last California grizzly bear sighted -

Hunted to extinction, what was thought to be a California grizzly bear was spotted in Sequoia National Park for the last time, in 1924. The bear remains the symbol of the state flag of California.

Sources: (Time) (Olympics) (Library of Congress) 

See also: What do the 50 state flags of the US represent?

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