Massachusetts is the only state that bans all nonprofessional fireworks.

11 people died from firework injuries in the US in 2024, with most of those deaths involving misuse of the explosives and device malfunctions or misfires.

Massachusetts banned happy hour in 1984 during a surge in advocacy around preventing drunk driving

Massachusetts was the first US state to ban happy hours. The ban, which prohibits selling discounted drinks during designated times, occurred after a 20-year-old woman died in a drunken driving accident in Braintree, Massachusetts.

In the early 1900s, Fourth of July celebrations were so dangerous that a reform movement emerged to make them safer.

Fireworks-related ER visits in 2024 increased by 52% as compared to the prior year.

Fireworks' chemical composition and internal layout produce their unique displays

The burning of different metal compounds, facilitated by combining fuel with oxidizers, results in explosions of varying colors. The timing and pattern are engineered through the arrangement of pellets and fuses.

Beyond burns, fireworks can harm respiratory, auditory, and visual health.

'Silent' fireworks are not entirely noise-free

By using a reduced amount of flash powder—the ingredient responsible for the loud explosions that fireworks make—"silent" fireworks produce displays between 70 and 90 decibels, rather than the approximately 175 decibels heard in professional displays.

Fun family fireworks turn ballistic

The American Pyrotechnics Association estimates that over 10,000 injuries result each year from fireworks, close to three-quarters of which occur around the Fourth of July. This video shows just one rather explosive miscue.

Firework-related celebrations include an annual summer celebration in El Salvador, where residents throw kerosene-soaked balls to commemorate a 1658 volcanic eruption.

'Silent' fireworks have gained more interest in recent years as a quieter celebratory option.

Fireworks usage on Independence Day comes from their celebratory use in ancient China

Burning bamboo stalks produces a small explosion that was believed to ward off evil spirits. As knowledge of fireworks, which initially used these stalks, carried over into other cultures, so did their use to promote good luck and celebration.

Watch over a dozen fireworks effects

Adding pellets of salt to gunpowder within a fireworks shell causes them to explode with different colors, but the type of gunpowder used also has an effect. Finely ground gunpowder burns quickly, producing streaks that swiftly burn out.

The most fireworks launched from a pyrotechnics suit is 642

Frenchman Laurent Nat, a pyrotechnics artist and performer with over 10 years of experience, set the world record on June 13, 2014. The suit, inspired by clothes worn by professional firefighters, is made out of 100% cotton and incorporates stilts to allow fireworks to be fired in all directions.

Fireworks make a loud booming sound after explosion due to air expanding faster than the speed of sound.

One Chinese businessman controls 70% of the fireworks entering the US

A warehouse explosion in 2008 forced all pyrotechnic shipments to travel through the Shanghai port under three special permits Ding Yan Zhong was given. Since then, he has established a near-monopoly over the global fireworks distribution chain, with logistics and shipping hubs in China and California. (Some users may experience a paywall.)

A New York fireworks ban necessitated a new way to ring in the New Year

In 1906, the city banned fireworks displays, forcing the Times Square celebration to find a new centerpiece. The Times commissioned Jacob Starr, a Ukrainian immigrant who worked for Strauss Signs, to develop an ornament. He returned with the now-iconic New Year’s ball.

Massachusetts passed the first law requiring children to be educated as early as 1642.

Explore the chemical compounds found in fireworks

Besides the various salts and metals used to produce fireworks colors, shells are also filled with gunpowder and oxidizers to help fuel and accelerate reactions. Chlorates help strengthen colors, while dextrin, a starch, helps hold mixtures together.

In 1639, Puritans in the Massachusetts Bay Colony banned toasting

Like the Anglo-Saxons and the ancient Greeks before them, the American colonists tended to party when they got to toasting. That led to a 1639 law banning the practice, which they viewed as excessive and superstitious. Alcohol remained legal, but the hope was that banning toasting might reduce excessive drinking.

Fireworks contribute to air, water, and soil contamination and disrupt wildlife

Fireworks displays have far-reaching environmental consequences, including acid rain from displays during storms and microplastic pollution in water supplies. Wildlife has also been seen abandoning sites during fireworks and never returning.

Firework or sparkler burns can have large effects on our hands' range of motion.

Watch a pyrotechnician answer questions about fireworks

Professional pyrotechnician Patrick Cyrana answers the internet’s most curious questions about fireworks, from designing ghost effects and exploring how electronic firing systems work to explaining what it takes to create displays in the rain.

Watch a drone flight through a fireworks display

This video explores the history, construction, and preparation of modern fireworks displays, including creating gunpowder from scratch. Experimentation with fireworks underwater is also featured, but they require special materials to prevent water from infiltrating the fireworks shell.

See how fireworks are made and which metals are responsible for different colors.

Learn more about the history of fireworks, which date back to an accidental invention during an alchemist's quest for information about immortality.

The deadliest fireworks accident in history was Marie-Antoinette's wedding

In 1770, a fireworks display in Paris celebrating the marriage of Marie-Antoinette to the Dauphin, later known as Louis XVI, resulted in as many as 3,000 deaths. Most casualties were caused by trampling from a panicked crowd of thousands rushing away after some fireworks were blown into the spectators.

Some US states are now revising their happy hour bans

While states like Massachusetts started banning happy hour in the 1980s as an anti-overconsumption measure, not every state has kept these bans intact. This article dives into the arguments for and against revising the happy hour ban in Massachusetts, the first state to institute such a ban.

Variations in rapidly expanding gas and mechanical elements produce fireworks sounds

Chemical compounds designed to vibrate rapidly when ignited produce whistling, screeching sounds, while crackles and pops are created by small star pellets inside the firework, which explode one after another quickly. Fluttering and chirping sounds are produced by spinning elements that rotate rapidly as the firework ascends.

Despite originating in America, happy hour isn't allowed in every state.

China makes 90% of the world's fireworks, with Liuyang as its production capital

Fireworks were invented in China, but their predecessor, the firecracker, was discovered in Liuyang upon burning bamboo. Pyrotechnics have since become part of the city's culture. Liuyang has won many international fireworks display competitions.

Visualize the components of fireworks

This article provides animated diagrams depicting how different parts of fireworks function. The elements work together through timed mechanisms to produce desired effects.

Firecrackers on Lunar New Year originated to ward off evil spirits

Many countries have attempted to ban firecrackers, though some rolled back those restrictions for the sake of the holiday. This tradition, along with numerous other practices, has evolved for decades since the origin of the festival.

Each state has its own regulations regarding marriage

Some states don’t even require a ceremony or license, opting to allow “common law” marriages. Prenuptial agreements and other legal matters will likely require an attorney’s help. And marriages can offer benefits, like tax breaks.

Learn how your body is, scientifically, like a firework with its own slow, controlled burn.

See images of medical cases of firework injuries shared on this 'Instagram for doctors.' (Warning: Graphic images.)

Bright blue fireworks are the most difficult color to create

Copper chloride emits blue light when heated, but breaks down at the temperatures created when fireworks explode. Pyrotechnicians continue to search for an ideal mixture that provides a temperature high enough for copper chloride to shine brightly without being destroyed.

Massachusetts is the state with the highest median household income for young Americans at $123.2K per year

Americans ages 25 through 44 make more in some states than others. While Massachusetts took the top billing, Mississippi came in last place out of all 50 states at $66K per year—a roughly 87% difference. However, it's important to remember that the cost of living in many of the highest-earning states in the US is significantly higher than the cost of living in the lowest-earning states.

16 states impose term limits on their legislatures

As of 2025, 16 states limit how long lawmakers can serve, usually capping tenure at eight to 12 years in one chamber or across both chambers combined. Most of these limits stem from a 1990s reform wave aimed at curbing career politicians.