
The Eighteenth Amendment of the United States Constitution established the prohibition of alcohol in the United States. The amendment was proposed by Congress on December 18, 1917, and was ratified by the requisite number of states on January 16, 1919. The Eighteenth Amendment was repealed by the Twenty-first Amendment on December 5, 1933. It is the only amendment to be repealed.

The 1919 Actors' Equity Association strike officially spanned from August 7, 1919, to September 6, 1919. In the late 19th and early 20th centuries, the theatre industry was revolutionized by powerful management groups that monopolized and centralized the industry. These groups created harsh working conditions for the actors. On May 26, 1913, actors decided to unionize, and they formed the Actors' Equity Association. After many failed attempts to negotiate with the producers and managers for fair treatment and a standard contract, Equity declared a strike against the Producing Managers' Association on August 7, 1919. During the strike, the actors walked out of theaters, held parades in the streets, and performed benefit shows. Equity received support from the theatrical community, the public, and the American Federation of Labor, and on September 6, 1919, the actors won the strike. The producers signed a contract with the AEA that contained nearly all of Equity's demands. The strike was important because it expanded the definition of labor and altered perceptions about what types of careers could organize. The strike also encouraged other groups within the theatre industry to organize.

The 1919 Bible Conference was a Seventh-day Adventist Church conference or council held from July 1 to August 9, 1919, for denominational leaders, educators, and editors to discuss theological and pedagogical issues. The council was convened by the General Conference Executive Committee led by A. G. Daniells, the president of the General Conference. The meetings included the first major discussion of the inspiration of Ellen G. White's writings after her death in 1915, and the far-reaching theological scope of the discussions would generate considerable controversy.

In the Boston Police Strike, Boston police officers went on strike on September 9, 1919. They sought recognition for their trade union and improvements in wages and working conditions. Police Commissioner Edwin Upton Curtis denied that police officers had any right to form a union, much less one affiliated with a larger organization like the American Federation of Labor (AFL), which some attribute to concerns that unionized police would not protect the interest of city official and business leaders. Attempts at reconciliation between the Commissioner and the police officers, particularly on the part of Boston's Mayor Andrew James Peters, failed.

This list of American films of 1919 is a compilation of American films that were released in the year 1919.

The King–Crane Commission, officially called the 1919 Inter-Allied Commission on Mandates in Turkey, was a commission of inquiry concerning the disposition of areas within the former Ottoman Empire.

The Morgan County, West Virginia race riot of 1919 was caused by big business using African-American strikebreakers against striking white workers in Morgan County, West Virginia.

The 1919 Motor Transport Corps convoy was a long distance convoy carried out by the U.S. Army Motor Transport Corps that drove over 3,000 mi (4,800 km) on the historic Lincoln Highway from Washington, D.C., to Oakland, California and then by ferry over to end in San Francisco.

The Newport sex scandal arose from a 1919 investigation by the United States Navy into homosexual acts by Navy personnel and civilians in Newport, Rhode Island. The investigation was noted for its controversial methods of intelligence gathering, specifically its use of enlisted personnel to investigate alleged homosexuals by engaging them sexually. A subsequent trial attracted national news coverage and provoked a congressional investigation, which concluded with Secretary of the Navy Josephus Daniels and Assistant Secretary of the Navy Franklin D. Roosevelt being formally rebuked by a Congressional committee.

The Pittman Underground Water Act was an Act of Congress, that was approved on October 22, 1919 and was repealed on August 11, 1964. The public law gave the Secretary of the Interior the power to hand out permits to American citizens and associations to drill for and look for groundwater on public lands in Nevada. In addition, the law gave the Secretary the power to give patents to permittees who found enough groundwater to sustain a farm. The law was supposed to stimulate agriculture in Nevada by supporting the development of artesian waters, since it was thought that the absence of surface water undermined the growth of the agricultural sector in Nevada.

The Seattle General Strike of 1919 was a five-day general work stoppage by more than 65,000 workers in the city of Seattle, Washington from February 6 to 11. Dissatisfied workers in several unions began the strike to gain higher wages after two years of World War I wage controls. Most other local unions joined the walk-out, including members of the American Federation of Labor (AFL) and the Industrial Workers of the World (IWW). Government officials, the press, and much of the public viewed the strike as a radical attempt to subvert American institutions.

The steel strike of 1919 was an attempt by the weakened Amalgamated Association of Iron, Steel and Tin Workers (AA) to organize the United States steel industry in the wake of World War I. The strike began on September 22, 1919, and collapsed on January 8, 1920.

The presidency of Woodrow Wilson began on March 4, 1913 when Woodrow Wilson was inaugurated as President of the United States, and ended on March 4, 1921.

The United Mine Workers coal strike of 1919 saw coal miners strike for over a month, from November 1 to December 10 1919, for better wages.

The National Prohibition Act, known informally as the Volstead Act, was enacted to carry out the intent of the 18th Amendment, which established prohibition in the United States. The Anti-Saloon League's Wayne Wheeler conceived and drafted the bill, which was named for Andrew Volstead, Chairman of the House Judiciary Committee, who managed the legislation.

The Wheat Price Guarantee Act was a 1919 bill passed by Congress that gave the government the power to regulate the price of wheat.