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North America

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1914

Culture 20th Century North America

Babe Ruth Makes Major League Debut

Baseball in the early 20th century was transitioning from its dead-ball era toward greater emphasis on power hitting and star pitchers, with the Boston Red Sox seeking fresh talent amid competitive American League play. George Herman "Babe" Ruth, a 19-year-old left-handed pitcher from Baltimore, had been scouted for his strong arm and was called up from the minor leagues. On July 11, Ruth took the mound against the Cleveland Indians at Fenway Park, pitching seven innings, allowing only seven hits, and earning the win in a 4-3 victory while also collecting two hits as a batter. His performance showcased the dual-threat ability that would later define his legendary career after he moved to the outfield and New York Yankees. The...

Event Detail America 250 Atlas

1915

Technology 20th Century North America

Bell Inaugurates U.S. Transcontinental Telephone Service

By the early 20th century, telephone networks had expanded across the eastern and western United States but lacked a reliable long-distance connection. On January 25, 1915, Alexander Graham Bell placed the first official transcontinental call from New York to Thomas Watson in San Francisco. The demonstration used newly developed vacuum-tube amplifiers to overcome signal loss over 3,400 miles of wire. The call lasted several minutes and showcased the technology's potential for coast-to-coast communication. It marked the completion of a major infrastructure project by AT&T. The service quickly became available to the public at high cost.

Event Detail America 250 Atlas

1916

Military 20th Century North America

Pancho Villa Raids Columbus, New Mexico

Francisco 'Pancho' Villa, a leader in the Mexican Revolution, faced setbacks after breaking with the Carranza government and losing U.S. support. Seeking supplies and revenge, he led roughly 500 men across the border. Early on March 9, 1916, the force attacked the small town of Columbus, New Mexico, and its U.S. Army garrison. Villistas looted buildings, set fires, and clashed with the 13th Cavalry. American troops repelled the raiders after intense fighting, inflicting heavy casualties before Villa withdrew into Mexico.

Event Detail US Military Atlas

1916

Law 20th Century North America

U.S. National Park Service Established by Congress

By the early 20th century, the United States had designated several national parks and monuments, yet management remained fragmented across different federal agencies. President Woodrow Wilson signed the Organic Act on August 25, 1916, creating the National Park Service within the Department of the Interior. The new agency was tasked with conserving scenery, natural objects, and wildlife while providing for public enjoyment in a manner that left resources unimpaired. Stephen Mather, a prominent conservationist, became the first director. The legislation unified oversight of parks like Yellowstone and Yosemite under professional administration. It responded to growing public interest in outdoor recreation and preservation.

Event Detail America 250 Atlas

1917

Politics 20th Century North America

Wilson Asks Congress to Declare War on Germany

As World War I raged in Europe, the United States maintained neutrality despite growing tensions from German submarine warfare and the Zimmermann Telegram proposing an alliance with Mexico. On April 2, 1917, President Woodrow Wilson addressed a joint session of Congress, delivering his famous "War Message" in which he argued that the world must be made safe for democracy and requested a declaration of war against Germany. The speech outlined German violations of neutral rights and the moral imperative for American involvement. Congress approved the declaration four days later on April 6, marking the end of U.S. isolationism and committing American troops and resources to the Allied cause. Wilson's address framed the conflict as a crusade for global principles rather...

Event Detail Free Speech Atlas

1917

Military 20th Century North America

United States Enters World War I

After years of neutrality amid submarine warfare and diplomatic tensions, President Woodrow Wilson asked Congress for a declaration of war against Germany. The Senate had approved the measure days earlier, and the House followed with a vote on April 6, 1917. Wilson signed the declaration that day, bringing the United States into the European conflict on the side of the Allies. American industrial and military resources began mobilizing on a massive scale, eventually sending more than two million troops overseas. The entry shifted the balance of the war and introduced new dynamics in global alliances.

Event Detail US Military Atlas

1917

Politics Born On 20th Century North America

John F. Kennedy Born in Brookline

John Fitzgerald Kennedy was born on May 29, 1917, in Brookline, Massachusetts. The second of nine children in the politically prominent Kennedy family, he graduated from Harvard and served as a U.S. Navy officer during World War II. After the war, Kennedy represented Massachusetts in the U.S. House and Senate. He won the 1960 presidential election and became the thirty-fifth president in January 1961, the youngest person elected to the office. His administration confronted the Bay of Pigs invasion, the Cuban Missile Crisis, accelerating American involvement in Vietnam, competition with the Soviet Union in space, and growing domestic demands for civil rights. Kennedy supported the goal of a crewed lunar landing and increasingly backed federal civil-rights legislation in 1963. On...

Event Detail Assassination Attempts

1917

Military 20th Century North America

US Congress Declares War on Austria-Hungary

By December 1917, the United States had entered World War I against Germany earlier that year and faced pressure to address the full scope of the Central Powers alliance. On December 7, 1917, Congress approved a resolution declaring war on Austria-Hungary with only one dissenting vote. The declaration aligned US forces more completely with the Allied powers fighting on the Western Front and in other theaters. It came amid ongoing submarine warfare and diplomatic strains that had already drawn America into the conflict. American troops and resources subsequently contributed to operations against Austro-Hungarian forces until the empire's collapse in 1918.

Event Detail US Military Atlas

1918

Technology 20th Century North America

US Implements Daylight Saving Time Nationwide

During World War I, European nations had adopted daylight saving time to conserve coal and electricity by shifting clocks forward in spring. The United States followed suit amid wartime resource shortages. President Woodrow Wilson signed the Standard Time Act on March 19, 1918, establishing time zones and advancing clocks one hour from the last Sunday in March to the last Sunday in October. The change took effect on March 31, 1918, marking the first nationwide observance. Farmers and rural communities protested the disruption to daily rhythms, while urban industries benefited from extended evening daylight.

Event Detail US Military Atlas

1918

Science Born On 20th Century North America

Richard Feynman Born in New York City

Richard Phillips Feynman was born on May 11, 1918, in New York City and grew up in Far Rockaway, Queens. He studied physics at the Massachusetts Institute of Technology and earned his doctorate at Princeton University. During World War II, Feynman worked at Los Alamos on the Manhattan Project. After the war he taught at Cornell University and then the California Institute of Technology. His research made fundamental contributions to quantum electrodynamics, including the graphical calculation tools now known as Feynman diagrams. He shared the 1965 Nobel Prize in Physics with Julian Schwinger and Shin'ichirō Tomonaga for work on quantum electrodynamics. Feynman also contributed to superfluidity, particle physics, and quantum computing concepts and became famous as an unusually engaging teacher....

Event Detail Guided Physics

1919

Disaster 20th Century North America

Great Molasses Flood Devastates Boston

In Boston's North End, a massive steel tank belonging to the United States Industrial Alcohol Company held over two million gallons of molasses used in rum production and industrial processes. On the afternoon of January 15, 1919, a sudden temperature rise after cold weather caused the poorly constructed tank to rupture, releasing a wave of sticky liquid up to 25 feet high that traveled at speeds exceeding 30 miles per hour through city streets. The flood killed 21 people, injured dozens more, and caused extensive property damage as it swept away buildings, horses, and vehicles before the molasses cooled and hardened. Investigations revealed negligence in tank maintenance and construction, leading to lawsuits and regulatory changes. The bizarre disaster exposed risks...

Event Detail America 250 Atlas

1919

Law 20th Century North America

18th Amendment Ratified, Beginning Prohibition Era

Temperance movements had grown since the early 19th century amid concerns over alcohol's social costs, culminating in congressional passage of the amendment in 1917. On January 16, 1919, Nebraska's ratification provided the required 36 states, enacting the 18th Amendment prohibiting manufacture, sale, or transportation of intoxicating liquors. Enforcement fell to the Volstead Act passed later that year. The measure reflected Progressive Era reforms targeting public health and morality. It took effect one year later on January 17, 1920.

Event Detail America 250 Atlas

1919

Civil Rights 20th Century North America

U.S. Congress Approves Nineteenth Amendment

The women's suffrage movement in the United States had intensified over decades, with activists organizing marches, petitions, and state-level campaigns for voting rights. After years of advocacy, the House of Representatives had approved a constitutional amendment in 1918. On June 4, 1919, the U.S. Senate passed the Nineteenth Amendment by a vote of 56 to 25, sending it to the states for ratification. The amendment stated that the right to vote could not be denied on account of sex. President Woodrow Wilson had supported the measure, reflecting shifting political momentum following World War I contributions by women.

Event Detail America 250 Atlas

1919

Civil Rights 20th Century North America

Chicago Race Riot Erupts After Beach Incident

Following World War I, Chicago experienced rapid demographic shifts with thousands of African Americans migrating from the South for industrial jobs, intensifying competition for housing, employment, and public spaces amid existing segregation practices. Tensions boiled over on a hot July day at the 29th Street Beach on Lake Michigan. On July 27, 1919, a white man threw stones at 17-year-old Eugene Williams, an African American swimmer who had drifted across an informal racial boundary, causing him to drown. Police refused to arrest the man despite Black witnesses' accounts. Crowds gathered, rumors spread, and violence erupted between white and Black groups, with mobs attacking homes and individuals across the South Side.

Event Detail America 250 Atlas

1919

Civil Rights Born On 20th Century North America

George Wallace Born in Clio, Alabama

George Corley Wallace Jr. was born on August 25, 1919, in Clio, Alabama. A lawyer and state judge, Wallace became one of the most prominent segregationist politicians of the civil-rights era. He was elected governor of Alabama in 1962 and gained national attention for defending racial segregation and resisting federally ordered integration, including his symbolic confrontation at the University of Alabama in 1963. Wallace later sought the presidency several times and won five states as the American Independent Party candidate in 1968, campaigning on themes that combined opposition to desegregation with populist criticism of federal institutions and social change. While campaigning for the Democratic presidential nomination in 1972, he was shot and seriously wounded in Maryland, leaving him paralyzed. Wallace...

Event Detail Assassination Attempts

1919

Politics 20th Century North America

President Wilson Suffers Debilitating Stroke

Woodrow Wilson had returned from the Paris Peace Conference determined to secure U.S. ratification of the Treaty of Versailles and membership in the League of Nations. Exhaustion from an intense cross-country speaking tour to build public support left him vulnerable. On October 2, 1919, Wilson suffered a severe ischemic stroke at the White House that paralyzed his left side and impaired his cognitive functions. His wife Edith and physician Cary Grayson tightly controlled access to the president, shielding the extent of his incapacity from the public and Congress for months. The stroke effectively sidelined Wilson during critical debates over the treaty.

Event Detail America 250 Atlas

1919

Law 20th Century North America

Congress Overrides Wilson Veto of Volstead Act

The Eighteenth Amendment, ratified earlier in 1919, banned the manufacture, sale, and transportation of intoxicating liquors. To enforce it, Congress crafted the National Prohibition Act, known as the Volstead Act after its sponsor. President Woodrow Wilson vetoed the measure on October 27, citing wartime and economic concerns. On October 28, both the House and Senate overrode the veto with the required two-thirds majorities, enacting the law. The legislation defined enforcement mechanisms, penalties, and exceptions for industrial and medicinal uses while empowering federal agents. It took effect in January 1920, launching the Prohibition era.

Event Detail America 250 Atlas

1920

Civil Rights 20th Century North America

American Civil Liberties Union Founded

Following the Palmer Raids and widespread suppression of dissent during and after World War I, civil liberties advocates sought to institutionalize defense of constitutional rights. On January 19, 1920, a group including Roger Baldwin, Crystal Eastman, and Albert DeSilver formally established the American Civil Liberties Union from the earlier National Civil Liberties Bureau. The new organization aimed to protect free speech, due process, and the rights of radicals, immigrants, and labor activists targeted by government actions. Its founding meeting outlined immediate priorities around defending those affected by the raids and anti-war prosecutions. The ACLU quickly became a leading force in landmark legal battles.

Event Detail Free Speech Atlas

1920

Civil Rights 20th Century North America

Matewan Massacre Erupts in West Virginia

Coal mining communities in southern West Virginia faced intense pressure from mine operators seeking to block union organizing in the early 20th century. Baldwin-Felts detectives arrived in Matewan to evict striking miners and their families from company housing. Local police chief Sid Hatfield and Mayor Cable Testerman sided with the miners against the armed agents. On May 19, 1920, a confrontation on the town's main street escalated into a gun battle that left ten people dead, including seven detectives. The clash highlighted deep divisions between labor and capital in the Appalachian coalfields.

Event Detail

1920

Civil Rights 20th Century North America

Tennessee Ratifies 19th Amendment Granting Women Vote

By 1920, the women's suffrage movement had campaigned for decades across the United States, securing ratification in 35 states but needing one more for the required three-fourths majority. The Tennessee legislature convened in a special session amid intense lobbying from both suffragists and opponents. On August 18, the state House debated fiercely, with the vote tied until 24-year-old Representative Harry T. Burn received a telegram from his mother urging him to support the amendment. Burn changed his vote from opposing to supporting, securing passage by a single vote of 50-46. The Senate had already approved it, completing ratification. President Woodrow Wilson proclaimed the amendment part of the Constitution days later.

Event Detail America 250 Atlas

1920

Civil Rights 20th Century North America

19th Amendment Certified for Women's Suffrage

The movement for women's voting rights in the United States gained momentum after decades of activism, with the amendment first proposed in Congress in 1878. After passage by Congress in 1919, ratification required approval by three-fourths of the states. Tennessee provided the decisive 36th ratification on August 18, 1920. Secretary of State Bainbridge Colby certified the amendment on August 26, 1920, formally adding it to the Constitution. The new provision prohibited denial of voting rights on account of sex. Millions of American women gained the franchise overnight, fundamentally altering the electorate.

Event Detail America 250 Atlas

1920

Disaster 20th Century North America

Bomb Detonates on Wall Street During Lunch Hour

The years after World War I brought labor strikes, anarchist bombings, and the First Red Scare to the United States, heightening tensions around radical political movements. On September 16, 1920, a horse-drawn wagon carrying approximately 100 pounds of explosives and metal fragments exploded at noon in front of the J.P. Morgan & Co. building on Wall Street. The blast killed 38 people, mostly clerical workers and messengers, and injured more than 300 others. Investigators attributed the attack to anarchist groups, though no perpetrators were ever convicted. The bombing remains one of the deadliest terrorist incidents in U.S. history prior to the twenty-first century.

Event Detail America 250 Atlas

1920

Culture 20th Century North America

September 17, 1920: The Founding of the League That Became the NFL

Representatives of professional football clubs met in the Canton, Ohio, automobile showroom of Canton Bulldogs owner Ralph Hay and organized the American Professional Football Association. The new association sought to bring order to a sport troubled by escalating salaries, players moving freely among teams, and inconsistent club arrangements. The representatives elected celebrated athlete Jim Thorpe as the association's first president. In 1922, the organization adopted the name National Football League.

Event Detail OpenPlay Football

1921

Civil Rights 20th Century North America

Tulsa Race Massacre Destroys Greenwood District

Tulsa's Greenwood neighborhood had become one of the most prosperous Black communities in the United States by the early 1920s. On May 31 a confrontation at the county courthouse involving a Black teenager accused of assaulting a white woman quickly escalated into armed clashes. White mobs, some deputized by local authorities, invaded Greenwood the following night. They burned homes and businesses, looted property, and killed residents. Estimates of Black fatalities range from dozens to several hundred, with the neighborhood left in ruins. State and local officials largely failed to prosecute perpetrators or provide meaningful reconstruction aid.

Event Detail America 250 Atlas