By: History.com Editors

1919

Boston shocked by deadly molasses flood

History.com Editors

Published: November 13, 2009

Last Updated: January 31, 2025

Fiery hot molasses floods the streets of Boston on January 15, 1919, killing 21 people and injuring scores of others. The molasses burst from a huge tank at the United States Industrial Alcohol Company building in the heart of the city.

The United States Industrial Alcohol building was located on Commercial Street near North End Park in Boston. It was close to lunch time on January 15 and Boston was experiencing some unseasonably warm weather as workers were loading freight-train cars within the large building. Next to the workers was a 58-foot-high tank filled with 2.5 million gallons of crude molasses.

Suddenly, the bolts holding the bottom of the tank exploded, shooting out like bullets, and the hot molasses rushed out. An eight-foot-high wave of molasses swept away the freight cars and caved in the building’s doors and windows. The few workers in the building’s cellar had no chance as the liquid poured down and overwhelmed them.

Smashed vehicles and debris sitting in a puddle of molasses on Commercial Street on January 16, 1919, the day after a giant tank in Boston’s North End collapsed, sending a wave of more than two million gallons of molasses. The tank was 58 feet high and 98 feet in diameter. It was used to store molasses which eventually was shipped to a distillery in Cambridge.

The Boston Globe/Getty Images

The gooey molasses formed a tidal wave that reached a depth of 15 feet and in places was 100 yards wide over a two block area. The accident ultimately killed 21 people and injured 150 more. The smell of molasses lingered for decades.

The Boston Globe/Getty Images

Rubble is all that’s left of a fire station after the Molasses Flood.

The Boston Globe/Getty Images

An elevated train structure is a twisted mass of metal after the Molasses Flood.

Bettmann Archive/Getty Images

Police, firemen, Red Cross workers, civilian volunteers, and cadets from the USS Nantucket training ship docked nearby rushed to the scene to rescue as many people as they could.

The Boston Globe/Getty Images

The huge quantity of molasses then flowed into the street outside. It literally knocked over the local firehouse and then pushed over the support beams for the elevated train line. The hot and sticky substance then drowned and burned five workers at the Public Works Department. In all, 21 people and dozens of horses were killed in the flood. It took weeks to clean the molasses from the streets of Boston.

This disaster also produced an epic court battle, as more than 100 lawsuits were filed against the United States Industrial Alcohol Company. After a six-year-investigation that involved 3,000 witnesses and 45,000 pages of testimony, a special auditor finally determined that the company was at fault because the tank used had not been strong enough to hold the molasses. Nearly $1 million was paid in settlement of the claims.

Why the Great Molasses Flood Was So Deadly

When a steel tank full of molasses ruptured in 1919, physics and neglect contributed to making the accident so horrific, leading to 21 deaths.

By: Emily Sohn

Timeline

Also on This Day in History

Discover more of the major events, famous births, notable deaths and everything else history-making that happened on January 15th

1559

Elizabeth I crowned Queen of England

Two months after the death of her half-sister, Queen Mary I of England, Elizabeth Tudor, the 25-year-old daughter of Henry VIII and Anne Boleyn, is crowned Queen Elizabeth I at Westminster Abbey in London.

1777

Vermont declares independence from colony of New York

Having recognized the need for their territory to assert its independence from both Britain and New York and remove themselves from the war they were waging against each other, a convention of future Vermonters assembles in Westminster and declares independence from the crown of Great Britain and the colony of New York on January 15, 1777. The convention’s delegates included Vermont’s future governor, Thomas Chittenden, and Ira Allen, who would become known as the “father” of the University of Vermont.

1831

“The Hunchback of Notre Dame” is finished

On January 15, 1831, Victor Hugo finishes writing Notre Dame de Paris, also known as The Hunchback of Notre Dame. Distracted by other projects, Hugo had continually postponed his deadlines for delivering the book to his publishers, but once he sat down to write it, he completed the novel in only four months.

1870

First appearance of the Democratic Party donkey

On January 15, 1870, the first recorded use of a donkey to represent the Democratic Party appears in Harper’s Weekly. Drawn by political illustrator Thomas Nast, the cartoon is entitled “A Live Jackass Kicking a Dead Lion.” The jackass (donkey) is tagged “Copperhead Papers,” referring to the Democrat-dominated newspapers of the South, and the dead lion represents the late Edwin McMasters Stanton, President Abraham Lincoln’s secretary of war during the final three years of the Civil War. In the background is an eagle perched on a rock, representing the postwar federal domination in the South, and in the far background is the U.S. Capitol.

1919

Opposition leaders are murdered in failed coup in Berlin

A coup launched in Berlin by a group of radical socialist revolutionaries is brutally suppressed by right-wing paramilitary units from January 10 to January 15, 1919; the group’s leaders, Karl Liebknecht and Rosa Luxemburg, are murdered.

1929

Martin Luther King Jr. born

On January 15, 1929, Martin Luther King Jr. is born in Atlanta, Georgia, the son of a Baptist minister. King received a doctorate degree in theology and in 1955 helped organize the first major protest of the African American civil rights movement: the successful Montgomery Bus Boycott. Influenced by Mohandas Gandhi, he advocated civil disobedience and nonviolent resistance to segregation in the South. The peaceful protests he led throughout the American South were often met with violence, but King and his followers persisted, and the movement gained momentum.

Martin Luther King Jr.

1951

The “Witch of Buchenwald” is sentenced to prison

Ilse Koch, wife of the commandant of the Buchenwald concentration camp, is sentenced to life imprisonment in a court in West Germany. Ilse Koch was nicknamed the “Witch of Buchenwald” for her extraordinary sadism.

1967

Packers beat Chiefs in first Super Bowl

On January 15, 1967, the Green Bay Packers of the National Football League (NFL) smash the American Football League (AFL)’s Kansas City Chiefs, 35-10, in the first-ever AFL-NFL World Championship, later known as Super Bowl I, at Memorial Coliseum in Los Angeles.

1968

The Jeannette Rankin Brigade: 5,000 women march against Vietnam War

On January 15, 1968, an 87-year-old Jeannette Rankin leads 5,000 women—nicknamed the "Jeannette Rankin Brigade"—in a march in Washington, D.C. against the Vietnam War. The march is a capstone of Rankin's long career as a suffragist, pacifist and the first woman elected to U.S. Congress.

1972

“American Pie” hits #1 on the pop charts

On January 15, 1972, “American Pie,”, an epic poem in musical form that has long been etched in the American popular consciousness, hits #1 on the Billboard charts.

1981

“Hill Street Blues” begins run

On January 15, 1981, Hill Street Blues, television’s landmark cops-and-robbers drama, debuts on NBC. When the series first appeared, the police show had largely been given up for dead. Critics savaged stodgy and moralistic melodramas, and scoffed at lighter fare like Starsky and Hutch. Created by Steven Bochco and Michael Kozoll, Hill Street Blues invigorated television, paving the way for more realistic and gritty fare.

1990

Soviets send troops into Azerbaijan

In the wake of vicious fighting between Armenian and Azerbaijani forces in Azerbaijan, the Soviet government sends in 11,000 troops to quell the conflict.

2001

Wikipedia launches

Less than a year after the unsuccessful launch of Nupedia—an online free encyclopedia—its successor, Wikipedia, goes live on January 15, 2001. As of January 2024, Wikipedia has more some 6.8 million articles in more than 300 languages.

2009

Pilot Sully Sullenberger performs “Miracle on the Hudson”

On January 15, 2009, a potential disaster turns into a heroic display of skill and composure when Captain Chesley Burnett Sullenberger III safely lands the plane he was piloting on New York City’s Hudson River after a bird strike caused its engines to fail. David Paterson, governor of New York at the time, dubbed the incident the “miracle on the Hudson.”

Rescue crews secure a US Airways flight 1549 floating in the water after it crashed into the Hudson River on January 15, 2009 in New York City. All the passengers survived in what became known as the "Miracle on the Hudson." The Airbus 320 craft crashed shortly after take-off from LaGuardia Airport.

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Citation Information

Article title
Boston shocked by deadly molasses flood
Website Name
History
Date Accessed
March 23, 2025
Publisher
A&E Television Networks
Last Updated
January 31, 2025
Original Published Date
November 13, 2009

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