On January 5, 1920, the New York Yankees major league baseball club announces its purchase of the heavy-hitting outfielder George Herman “Babe” Ruth from the Boston Red Sox for the sum of $125,000.

On January 10, 1920, the League of Nations formally comes into being when the Covenant of the League of Nations, ratified by 42 nations in 1919, takes effect.

John Dodge, who with his brother Horace co-founded the Dodge Brothers Company, which was once America’s third-largest automaker and later became part of Chrysler, dies at the age of 55.

On January 22, 1920, the Dutch government refuses demands by the Allies for the extradition of Wilhelm II, the former kaiser of Germany, who had been living in exile in the Netherlands since November 1918.

On January 30, 1920, Jujiro Matsuda (1875-1952) forms Toyo Cork Kogyo, a business that makes cork, in Hiroshima, Japan; just over a decade later the company produces its first automobile and eventually changes its name to Mazda.

The League of Nations, the international organization formed at the peace conference at Versailles in the wake of World War I, recognizes the perpetual neutrality of Switzerland on February 13, 1920.

This Side of Paradise is published, immediately launching 23-year-old F. Scott Fitzgerald to fame and fortune.

On May 13, 1920, the Socialist Party nominates Eugene V. Debs as its candidate for president in the upcoming November election. There’s a slight complication, though: Debs is serving a 10-year sentence at a federal penitentiary in Atlanta and isn’t due to get out until 1928.

On May 18, 1920, Karol Jozef Wojtyla is born in the Polish town of Wadowice, 35 miles southwest of Krakow. Wojtyla went on to become Pope John Paul II, history’s most well-traveled pope and the first non-Italian to hold the position since the 16th century. After high school, the future pope enrolled at Krakow’s Jagiellonian University, where he studied philosophy and literature and performed in a theater group. During World War II, Nazis occupied Krakow and closed the university, forcing Wojtyla to seek work in a quarry and, later, a chemical factory. By 1941, his mother, father, and only brother had all died, leaving him the sole surviving member of his family.

On June 12, 1920, Man O’ War wins the 52nd Belmont Stakes, and sets the record for the fastest mile ever run by a horse to that time. Man O’ War was the biggest star yet in a country obsessed with horse racing, and the most successful thoroughbred of his generation.

Swarms of admirers mob the Hollywood film actors Mary Pickford and Douglas Fairbanks, who arrive in London on their honeymoon on June 21, 1920. Two of film’s earliest stars, Pickford and Fairbanks had been business partners since 1919, when they teamed up with Charlie Chaplin and director D.W. Griffith to form United Artists. As a wedding present for Pickford, Fairbanks bought an estate boasting 22 rooms and Beverly Hills’ first swimming pool. The couple dubbed the sprawling property “Pickfair.”

Nils Bohlin, the Swedish engineer and inventor responsible for the three-point lap and shoulder seatbelt—considered one of the most important innovations in automobile safety—is born on July 17, 1920 in Härnösand, Sweden.

On August 16, 1920, a gloomy day at the Polo Grounds, home of the New York Yankees, Cleveland Indians shortstop Ray “Chappie” Chapman steps into the batter's box to lead off the top of the fifth inning. The first pitch from the Yankees' Carl Mays strikes the un-helmeted Chapman in the temple, and he crumples to the ground. Though he makes his way off the field a short time later, Chapman collapses again and is rushed to the hospital. There, early the next morning, he will become the first and only Major League Baseball player to die as a direct result of being hit by a pitch.

A dramatic battle in the Tennessee House of Representatives ends with the state ratifying the 19th Amendment to the United States Constitution on August 18, 1920. After decades of struggle and protest by suffragettes across the country, the decisive vote is cast by a 24-year-old representative who reputedly changed his vote after receiving a note from his mother.

On August 20, 1920, seven men, including legendary all-around athlete and football star Jim Thorpe, meet to organize a professional football league at the Jordan and Hupmobile Auto Showroom in Canton, Ohio. The meeting led to the creation of the American Professional Football Conference (APFC), the forerunner to the hugely successful National Football League.

Daphne Milne, wife of writer A.A. Milne, gives birth to a son, who the couple name Christopher Robin Milne on August 21, 1920. Christopher Robin will be immortalized in A.A. Milne’s books Winnie-the-Pooh and The House at Pooh Corner.

The 19th Amendment, guaranteeing women the right to vote, is formally adopted into the U.S. Constitution by proclamation of Secretary of State Bainbridge Colby. The amendment was the culmination of more than 70 years of struggle by woman suffragists. Its two sections read simply: “The right of citizens of the United States to vote shall not be denied or abridged by the United States or by any State on account of sex” and “Congress shall have power to enforce this article by appropriate legislation.” Despite the passage of the amendment, poll taxes, local laws and other restrictions continued to block women of color from voting for several more decades.

On September 28, 1920, a Chicago grand jury indicts eight members of the Chicago White Sox on charges of fixing the 1919 World Series. White Sox owner Charles Comiskey immediately suspends Chick Gandil, Buck Weaver, Happy Felsch, Swede Risberg, Fred McMullin, Eddie Cicotte, Lefty Williams and "Shoeless" Joe Jackson, who are notorious for their involvement in the "Black Sox Scandal."

On October 1, 1920, Scientific American magazine reports that the rapidly developing medium of radio would soon be used to broadcast music. A revolution in the role of music in everyday life was about to be born.

On October 25, 1920, Greece’s King Alexander dies from wounds he received after a monkey attacked him earlier in the month. He was 27 years old.

On December 10, 1920, the Nobel Prize for Peace is awarded to U.S. President Woodrow Wilson for his work in ending the First World War and creating the League of Nations. Although Wilson could not attend the award ceremony in Oslo, Norway, the U.S. Ambassador to Norway, Albert Schmedeman, delivered a telegram from Wilson to the Nobel Committee.