Pizza Hut helped pioneer online food delivery

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.

In 2001, Pizza Hut became the first company to deliver pizza to space

The chain paid the Russian space agency nearly $1M for the promotional stunt, which saw a Russian cosmonaut eat the pizza on video. Other unusual objects to make it to the International Space Station include a gorilla suit, an espresso machine, and several musical instruments.

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."

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.

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.)

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.

Two Papa John’s pizzas were the first real-world transaction involving cryptocurrency

In 2010, a programmer Laszlo Hanyecz made the first real-world transaction involving cryptocurrency—purchasing two Papa John’s pizzas for 10,000 bitcoins. While the transaction was lauded as a milestone for cryptocurrency, it has also become a tongue-in-cheek cautionary tale—the value of the purchase price exceeded $620M at bitcoin’s all-time high.

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.

Domino's Pizza's 30-minute guarantee was discontinued after a string of delivery-driver accidents

The chain's promotional gimmick offered customers free or reduced pizzas if their pizzas weren't delivered in 30 minutes or less. That policy led to the chain's popularity, but it also led to reckless driving: In the late '80s, the National Safe Workplace claimed its drivers had the same death rate as miners. After Domino's was found liable in 1993 for nearly $79M in damages, it discontinued the policy.

Netflix started in 1997 as a mail-order DVD rental service

The first Netflix customers selected DVDs from the company’s website and received and returned them through regular mail. The approach included no late fees and quickly added the ability to rent an unlimited number of DVDs for a flat monthly fee, with the company passing 1 million subscribers in 2003.

Pizzagate alleged a neighborhood pizza joint was hosting a sex trafficking scheme

During the 2016 presidential elections, Comet Ping Pong Pizza became the subject of a conspiracy theory that the Clinton family used the space as a front for kidnapping and trafficking children. The hoax began on the message board 4chan after the public became aware that the shop's owner was a Democratic donor.

The world's largest pizza was 13,990 square feet

Pizza Hut teamed with YouTuber Eric Decker to create the massive, Guinness World Record-breaking pie. The 13,653-pound pizza was constructed at the Los Angeles Convention Center. It required 4,948 pounds of sauce, 8,800 pounds of cheese, and about 630,496 pepperoni slices.

Sears once tried to become a tech company

In 1984, Sears arguably created one of the first online retail services, called “Prodigy,” in 1984 alongside IBM and CBS. But it was more of a WeChat than an Amazon, offering a variety of other services to users a few years before the dot com era.

Pets.com is one of the most emblematic dot-com companies

Pets.com—an e-commerce pet store webpage—is a prime example of dot-com companies burning through investments. Despite being a popular and well-known brand, the company struggled to generate enough revenue to become profitable. After raising approximately $82.5M in its February 2000 initial public offering, Pets.com filed for bankruptcy in November of that same year.

The history of the National Science Foundation Network, a precursor of the internet

Although ARPANET connected various national laboratories and supercomputing facilities by the 1970s to facilitate scientific collaboration, the system was slow and required highly trained operators. The launch of NSFNET in 1986 provided a more flexible and powerful network that went on to connect over 170 academic and research communities and link to its European counterpart, EASInet.

The Grateful Dead's online bulletin board system inspired the early internet

The legendary countercultural band the Grateful Dead had a popular hub on The Well, an online extension of the Whole Earth Catalog, a popular hippie magazine in the '60s and '70s. Users included Craig Newmark (founder of Craigslist), Steve Case (founder of AOL), and Steve Wozniak (cofounder of Apple).

The original McDonald's served barbecue

Barbecue was a popular roadside cuisine in the early days of the US highway system, and McDonald's, while it was still a small enterprise in San Bernardino, California, served it as a part of its fast food menu.

Food poisoning investigations have led to more than 1 billion pounds of food recalls

PulseNet is the US government’s real-time foodborne illness tracking system for leading causes of food poisoning. There, a network of labs and scientists share DNA sequences for pathogens collected from contaminated food and also from sickened individuals, looking for patterns in the pathogens’ genome sequences that will help them hopefully finger a certain food, warehouse, producer, or restaurant.

One office park had an outsized role in the birth of Silicon Valley

Developed in 1951, Stanford Research Park was more than just a pioneering suburban office park. It would go on to catalyze Silicon Valley's tech ecosystem as a whole.

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.

Uber's startup origin story starts in Paris

Back in 2009, Uber’s cofounders tried to catch a cab during a Paris snowstorm without much luck. If only they could have requested a ride through one of their phones. This article dives into how Uber went from idea, to reality, to successful startup.

Uncrustables' reinvention of the PB&J

In the 1990s, David Geske and Len Kretchman came up with the ingenious idea to package and mass-produce a crustless version of the peanut butter and jelly sandwich. This makeover to an American childhood staple resulted in a $1B business. Read this article in Mental Floss to learn more about the origins of the brand Uncrustables and its extraordinary success.

The BNPL industry boomed amid a surge in online shopping during pandemic-era lockdowns

The buy now, pay later industry allows consumers to buy something immediately and pay in installments without the need for lengthy application and approval processes or high credit scores—and fintech companies Affirm, Klarna, and Afterpay are leading the charge by targeting young adults.

Eating KFC is a Christmas tradition in Japan

Since a 1974 marketing campaign, eating KFC on Christmas has become a nationwide custom in Japan. Families place orders weeks in advance, and the holiday accounts for nearly a third of KFC Japan's total yearly sales.

There’s a solid argument to be made that Macy’s was the inventor of the retail Santa

The Macy’s website claims that retail Santas—the Christmas icons who invite children to meet them at department stores and malls around the holidays—have been visiting the store since the 1860s.

The horror hotlines of the 1990s

Before the internet, 900-number hotlines were the way to retrieve instant information over the phone, whether for weather reports, movie information, or spooky horror stories. Callers could dial the number and hear ghost stories, experience interactive horrors, and more. This article reminisces about this extinct technology and how it paved the way for the internet.

The name 'Silicon Valley' arose from the founding of Shockley Semiconductor Laboratory in Fairchild Semiconductor in 1956-57, founded near Stanford University in Palo Alto

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

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.

Netflix profits when you're not watching, and its movies are designed that way—read a detail-rich critical essay exposing lesser-known Netflix takes

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

A vending machine run with Anthropic's AI went out of business after it was convinced to give away items for free and sell a video game console.

Elk Cloner, the first computer virus to spread in public, was written as a practical joke by Richard Skrenta, a Pittsburgh high school student.

Sears sold DIY house kits starting at $600 in its famous catalog from 1908 through the 1940s, resulting in roughly 10,000 'Sears and Roebuck houses' being built.

Telehealth demand for GLP-1s for weight loss is booming as consumers seek easier access.

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.

Exploring the Larry Bird punch that almost changed March Madness

Up to a million Girl Scouts sell about 200 million cookie boxes every spring, generating $800 million, largely because refusing a child is frowned upon

When you complete a CAPTCHA on a website to prove you are human, you may be unknowingly training algorithms for self-driving cars, whose systems require training data to help identify crosswalks, bicycles, and other outdoor objects.

Artificial coral reefs have been 3D printed from nontoxic, biodegradable terracotta clay, which coral polyps have used as a foundation for rebuilding marine ecosystems.

After her fellow cult members tried to kill her with an LSD-infused hamburger, one member of the Manson Family, the murderous cult led by Charles Manson, decided to testify against the group's leader.

The first image of a black hole was captured by creating an Earth-sized virtual observatory from a network of eight radio telescopes.

This real-time tracking of the hantavirus cruise ship outbreak in May 2026 offers a unique glimpse into the global reach of the outbreak and whether the virus sickened passengers and their communities around the world.

Prince's sexually explicit 1984 track 'Darling Nikki' attracted the ire of the Parents Music Resource Center, an advocacy group that inspired the Parental Advisory sticker, even though the song ends with a Christian message.

El Niño, Spanish for 'the boy,' was named after Jesus Christ because the phenomenon resembled the weather changes observed around Christmastime.

The syncytiotrophoblast is the outer layer of the placenta and the largest human cell, spanning an area about twice that of a king-sized bedsheet.

Comedy legend Catherine O'Hara, star of 'Schitt's Creek' and 'Home Alone,' quit 'Saturday Night Live' after just one week to return to her old job.

The concept of phantom limbs, the perception that amputated limbs are still present, dates back to a French military surgeon in the 16th century.

Louisiana's 'Cancer Alley' is infamous for having some of the highest industrial pollution, toxic air emissions, and cancer risks in the US.