The American American Professional Football League is formed in 1920 with Jim Thorpe as its president and eleven teams. It would change its name to the National Football League in 1922.
January 10, 1920 - The League of Nations holds its first meeting and accomplishes the rafitification of the Treaty of Versailles, ending the hostilities of the first World War. Nine days later the United States Senate votes against joining the League.
the first Olympic Winter Games took place in 1924 in Chamonix, France. The American Charles Jewtraw became the first Winter Games champion by winning the first event, the 500m speed skating.
November 28, 1925 - The Grand Ole Opry transmits its first radio broadcast.
The US Census reports that, for the first time, the urban population is higher than the rural population. ("Urban" was defined as an town with a population of over 2,500)
Disarmament was a major political issue in the early 1920's and delegates from all the major combatants of the war met to try and agree on a reduction in weapons. While the public were in favor of disarmament, politicians and military chiefs manouvred to position their armed forces to best advantage, knowing that underlying unresolved tensions would resurface in the form of further conflict.
The 18th Amendment made the manufacture, sale, and transportation of liquor illegal and began Prohibition in the United States.
The Nineteenth Amendment is ratified, granting women the right to vote.
Congress passes immigration restrictions, for the first time creating a quota for European immigration to the United States. Targeted at undesirable" immigrants from Southern and Eastern Europe, the act sharply curtails the quota for those areas while retaining a generous allowance for migrants from Northern and Western Europe. "Immigration Quota
Medical researcher Frederick Banting and research assistant Charles Best believed that they could find a cure for the "sugar disease" (diabetes) in the pancreas. They isolated insulin and successfully tested in on diabetic dogs
Researcher John Macleod and chemist James Collip began to help prepare insulin for humans. On January 11, 1922, Leonard Thompson, was given the first human experimental dose of insulin.
The American stock market collapses, signaling the onset of the Great Depression. The Dow Jones Industrial Average peaks in September 1929 at 381.17—a level that it will not reach again until 1954. The Dow will bottom out at a Depression-era low of just 41.22 in 1932. Stock Market Collapse
The Great Gatsby, a novel by American author F. Scott Fitzgerald, was published.
The Great Gatsby
Ernest Hemingway's first novel, "The Sun Also Rises," treats of certain of those younger Americans concerning whom Gertrude Stein has remarked: "You are all a lost generation."
THE SUN ALSO RISE
The United States Census reports, for first time, that more Americans live in urban areas than in rural areas. However, urban" is defined as any town with more than 2,500 people. "Census
On September 5, 1921, at a raucous Hollywood party, Virginia Rappe, a young starlet, became severely ill and died four days later. The newspapers claimed that popular silent-screen comedian Roscoe "Fatty" Arbuckle had raped her and killed her with his weight. There was little evidence against Arbuckle, but the public was quick to blame him.
Fatty Arbuckle Scandal
The Charleston dance became popular after appearing along with the song, "The Charleston," by James P. Johnson in the Broadway musical Runnin' Wild in 1923.
Flappers were young women in the 1920s whose dress, hair style, and attitude were much different than the Gibson Girl, the image of the ideal woman just a generation earlier.
Flapper Dresses in Style
October 11, 1929 - JC Penney opens its Store #1252 in Milford, Delaware, the last state in the Union to have one of their stores. The growth of the nationwide chain indicated the prosperity of the decade only two weeks before the stock market crash of 1929 would ensue.