After World War II, pizza took off in the US

Pizza became more popular in Italy after it took off in the US

Pizza was invented in Naples, though it wasn't particularly popular outside the region. As it grew more popular elsewhere—and as more American and European tourists visiting Italy began asking for it—restaurants across Italy adopted the cuisine. It's something anthropologist Agehananda Bharati calls "the pizza effect."

The story of pizza in the United States

Pizza is a big deal in the US, and it has many proud regional iterations. From Chicago deep dish to New York thin crust, this video takes a slice out of US history to focus on this beloved entree. Begin with the documented first incidence of pizza in the US—believed to be by Gennaro Lombardi—and end with how old Pizza Huts are being converted around the country.

Lombardi's was the first documented pizza restaurant in the US

The New York establishment opened in the early 1900s and was a cornerstone of Manhattan's SoHo. At one point, it was open 23 hours a day, allowing laborers of the predominantly Italian-American community to stop by for pies before or after work.

Chicago deep-dish pizza arrived in 1943

Pizzeria Uno was the first establishment to sell the concoction, which turned more traditional pizza upside down, with cheese as the base and sauce as the topping. Soon, Uno employees went out on their own, sparking a citywide deep-dish phenomenon.

The frozen pizza was invented in 1950

In 1950, some pizzerias were premaking pies, allowing customers to take them home and cook them at their convenience. That same year, Philadelphia's Joseph Bucci filed a patent for a "Method of Making Frozen Pizza." Soon, frozen pizzas were appearing in grocery store aisles.

Pizza's popularity has waned in the 2020s

The food remains popular, but it has lagged behind the growth of other fast food spots like coffee shops and Mexican restaurants. It ranked sixth in US food sales from restaurant chains in 2024; it was in the second slot throughout the 1990s. (Some readers may experience a paywall.)

A list of the world's best pizzerias

Italy may be pizza's ancestral home, but it's not the only place where you can get a top-notch slice. This guide, compiled by a team of anonymous judges, ranks the 50 best pizzerias in the world, Italy, the US, and more, offering a bucket list for pizza-loving completists.

Pizza Hut helped pioneer online food delivery

The company's PizzaNet website launched in 1994, allowing users to order pizza online for the first time. The service launched in select areas of Santa Cruz, California, though its servers were located in Kansas. Every order was relayed to the preferred branch in California, who would then call the user to confirm the order.

The Hawaiian pizza was popularized by a Canadian chef

Hawaii's tiki culture was popular in North America through the mid-20th century, with canned pineapple a household staple. Sam Panopoulos, a Greek immigrant who operated a diner in Ontario, experimented with outlandish pizza recipes until he stumbled upon the idea for topping a pie with canned pineapple and ham.

In 2023, the world consumed over 5 billion pizzas

Americans ate 3 billion of those, leading to sales that reached $43.3B, according to industry analysts at Gitnux. They estimated that Americans eat an average of 46 slices per person that year.

World War II helped convince food companies to produce more processed foods

Processed foods had existed since the 19th century, but they began infiltrating the mainstream during World War II, with foods designed to last on the battlefield for days. After the war, food companies saw great potential in the relatively cheap foods aimed at busy households. (Some readers may experience a paywall.)

Spikes in pizza orders near US government buildings are thought to be signs of international crises

Theorists have long believed that sudden increases in pizza deliveries near the Pentagon signal a major event is about to occur. Historical examples include the CIA ordering 21 pizzas the day before the beginning of the Gulf War, and another surge of deliveries before former President Bill Clinton's impeachment hearings. Citizens have since begun monitoring food orders in the area. See a tracker of Pentagon pizza orders here.

The fast food shops of ancient Pompeii

Researchers have unearthed a frescoed thermopolium (a sort of hot food and drink shop) in Pompeii, the ancient Roman city frozen in time after the catastrophic eruption of Mount Vesuvius in 79 CE. This fascinating discovery provides a glimpse into Roman culinary practices and the daily life of Pompeii's citizens.

Fascinating evolution of the oven

From ancient wood-fired ovens in Rome and Egypt to modern microwaves, the oven’s evolution has shaped how we cook. Early ovens focused on heat retention, but breakthroughs like the gas stove in 1834, and the electric stove in 1892, brought precision. Then, in 1967, the microwave redefined convenience.

America's ice cream obsession began under Prohibition

The emotional attachment to the sweet treat began during Prohibition, when many brewers started churning out ice cream instead of alcohol. Eventually, it symbolized joy during wartime and the Great Depression.

World War II innovations helped advance car racing

Modern American auto racing began in the 1920s with bootleggers modifying cars to outrun authorities. World War II innovations like better engines and surplus parts fueled post-war racing. By 1947, Bill France Sr. founded NASCAR, creating a unified league with consistent rules, transforming stock car racing into one of America’s favorite sports.

Domino's Pizza's 30-minute delivery guarantee was responsible for the chain's 1980s surge, but it was discontinued after the company was found liable for delivery driver accidents.

Westerners didn't encounter sushi until the mid-1800s

Japan was rather closed off until the mid-1800s, when Westerners, including Americans, began visiting the country and tasting sushi. But it wasn’t until the 1970s that the food became popular outside of Japan. California, in particular, became an American hub for the food, thanks to its large Japanese immigrant population.

Hibachi restaurants were designed to appeal to American soldiers stationed in Japan

Hibachi-style cooking was originally used in residences, with Japanese families cooking together around the grill. That style was then refined after World War II with the teppanyaki restaurant Misono, which used more American-friendly ingredients (like steak) to appeal to American soldiers stationed in the country. Despite the differences between teppanyaki and hibachi, diners began using "hibachi" to describe the concept. Later, the Aoki family brought it to American soil with Benihana.

White Castle helped propel fast food as a restaurant model

Diners looking for quick meals had plenty of options with food stands and automats, but White Castle pioneered the concept of the fast food restaurant with its first location in 1921 in Wichita, Kansas. The owners emphasized White Castle as more than a fast and cheap way to eat; it was a place to sit and enjoy a meal, with stainless steel interiors and open kitchens.

Radio quiz shows took off in the '40s

The concept took hold during the Great Depression, with 50 shows on the air by 1940, because they allowed families to imagine a financial windfall was just a few questions away. Although the genre had a slight downturn during World War II, it experienced a resurgence by the end of the decade, with 200 shows on the air.

The formation of the UN elevated the US on the world stage

This podcast episode of "To the Best of My Ability" from the National WWII Museum goes behind the scenes of the United Nations' founding from the American perspective. It explores how FDR's vision for global peace took shape, how Truman carried it forward, and how Eleanor Roosevelt helped define human rights—set against the backdrop of wartime diplomacy, Cold War tensions, and the San Francisco Conference, where the UN Charter was signed.

'I Love to Eat' was the first nationally televised cooking show

Beard’s show, cohosted with Julia Child, debuted in 1946. It was invaluable in setting the stage for today’s massive trove of televised and online cooking content.

'Shogun,' a 1980s TV series, helped popularize sushi in the US by stimulating an American interest in Japanese culture.

The Mexican-American War led to the birth of the Associated Press

To cover the distant war efficiently, rival New York newspapers pooled resources to share reports from the front—forming what became the Associated Press. The war marked a turning point in how Americans received real-time news about foreign conflicts.

The history of many kitchen appliances involves unexpected discoveries and applications, including wartime radar turned hamster defroster and replacing an 'ice king' with heat-stealing boxes.

'Vacation' wasn't common for Americans until the mid-1800s

Although we now consider vacation to be an integral part of the summer season, the concept didn't exist in the US until the middle of the 19th century. Even then, it was still a luxury and didn't become a middle-class norm until the early 20th century.

1984's 'Born in the USA' was a sensation, due in part to its music videos

The album was Springsteen's most pop-focused, with blaring synths and a pumping backbeat. It was a pop culture sensation, with five singles that reached the top 10, a massive arena tour, and several iconic music videos coinciding with MTV's rise. The record would eventually become one of the best-selling albums of all time.

Graffiti dates back to at least ancient Pompeii, where citizens scrawled messages to one another on public walls

At the beginning of the 20th century, a group of young men ate standard American food—replete with food additives like borax and formaldehyde—as part of government research to better understand food safety.

Fast-casual restaurant Chili's is experiencing a resurgence, with its parent company recently reporting a nearly 32% increase in sales, thanks to passionate Gen Z fans on TikTok.

See the most iconic photos from four decades of LIFE magazine

The word 'jazz' evolved from 'jasm,' 19th-century American slang for 'energy'

Jimmy Carter signed a 1978 bill that legalized home brewing, a move credited with kick-starting the craft beer industry.

In 1915, workers recovered a submarine-like vessel from the Chicago River, prompting fears of German espionage

Exploring the Larry Bird punch that almost changed March Madness

The US first hosted the World Cup in 1994, a tournament that lives in soccer infamy for its poor planning and the murder of Colombian player Andres Escobar, who'd accidentally scored on his own net.

Hear about the 250-year history of the United States Postal Service, complete with some of its strangest deliveries, important innovations, and the figures that made it an American institution.

'Saturday Night Fever,' the 1977 film that introduced disco to the mainstream, was based on a fabricated magazine story.

The Beatles' US label rejected the band's first two singles, 'Please Please Me' and 'From Me to You,' with one executive calling the band 'dead in the water.'

The American cockroach is actually from Africa, an apparent hitchhiker aboard ships carrying enslaved people, with evidence suggesting the bug may have arrived in the New World as early as the 1600s.

US housing costs have risen by roughly 175% between 1991 and 2026—but a growing number of Gen Zers are becoming homeowners anyway. In 2025, 4% of homebuyers were Gen Z, up from 3% the year before.

The first horror movie is believed to be George Méliès' 1986 short 'The Haunted Castle,' which pioneered the use of special effects

For centuries, it was common to sleep in two shifts: a few hours at the beginning of the night, and a longer period beginning around midnight

An initial public offering or 'IPO' is the process of a private company becoming public by putting shares of the company on the stock market for purchase.

Lesser-known phobias include turophobia, or the fear of cheese, and nomophobia, the fear of being without your cell phone.

See this overview of the firework rules across all 50 states, ranging from a complete ban on non-professional fireworks in Massachusetts to states with more lax rules like Indiana.

The Russia-Ukraine conflict is the largest ground war in Europe since World War II in terms of casualties, forces mobilized, and displacement of civilians.

Volcanoes 'die' when their supply of magma runs out, if they are shifted away from their underlying magma reservoir, or if they get clogged by collapsing or their magma cooling back into rock.

Objects can be 3D printed with light by projecting 2D computerized tomography (CT) scans onto rotating cylinders of resin, which solidify upon exposure.