1

World War II (1939–1945)

American veteran soldiers are entitled to several benefits as recognition for their service on behalf of the country, but this was not always the case. Before 1944, war veterans received pensions and disability-related medical care, but that was it. WWI veterans had received bonuses for their service, but these were not redeemable until 1945, which led to protests and turmoil during the Great Depression.

To avoid a similar situation with soldiers serving in WWII, a set of laws, popularly known as the "G.I. Bill", was passed in 1944. These laws guaranteed that, in addition to pensions and medical assistance, veterans were entitled to financial help towards education or training, low-cost loans, unemployment benefits, and job-search assistance . Since then, additional "G.I. Bills" have been passed, ensuring that veterans are looked after once their service is complete.

2

The Great Depression (1929–1939)

Historians agree that, despite President Roosevelt’s best efforts, the Great Depression was effectively ended by the industrial mobilization caused by WWII. America’s biggest economic crisis to date had been brought on by several factors , many of them related to reckless market speculation, inefficient monetary policies, lack of social security, and massive bank withdrawals made by panicked citizens.

While F.D.R.’s "New Deal" policies were insufficient to overcome the crisis, they successfully set up a system to prevent a similar economic collapse in the future . As a result of financial and banking reform, personal accounts were federally insured —which prevented future massive withdrawals that would deplete savings, commercial and investment banking were separated, and commissions were set up to regulate trading and prevent fraud. Additionally, social and welfare laws established pensions, work insurance, and unemployment compensation, and protected unions that allowed workers to collectively bargain with their employers.

3

The Great Chicago Fire (1871)

On October 8, 1871, a fire started on DeKoven Street, Chicago, and it burned for three days, destroying 17,450 buildings and leaving 300 casualties and thousands of people homeless. According to legend, the fire was started by a cow (owned by a woman named Mrs. O’Leary), although this was never confirmed; it was the wooden buildings, the strong wind, and the dry weather that turned an accident into a catastrophe.

Americans from all over the country rallied behind the relief effort, donating money, food, clothing, and more, but the tragedy also forced authorities to review their own municipal safety codes. New fire and building safety codes were implemented, banning wood buildings and requiring fire-safe materials such as brick, stone, or marble, as well as fireproof staircases, exit signs, and outward-opening doors. A new fire academy was founded to properly train firefighters, which put Chicago at the lead of America’s firefighting force.

4

Yellow Fever (1793)

In 1793, the city of Philadelphia received cargo ships from Saint-Domingue (modern-day Haiti), and with them, an epidemic that lasted for half a year. Among the cargo from the Caribbean, there were yellow fever-carrying mosquitoes, which thrived in the crowded docks and in the humid spring and summer weather. The open sewers, poor waste management, and general ignorance about the disease worsened the situation, which only let up with the cold fall weather, with 5,000 people, about 10% of the population, as casualties.

Although the widely believed cause of the spread of the epidemic —foul "miasma" or bad air— was incorrect, it did lead to proper infrastructure changes to prevent a similar situation. The city targeted polluted waterways and rotten waste, exposing severely contaminated wells. Municipal water systems to provide clean drinking water were created, and paved streets with proper gutters and sewers reduced the amount of stagnant water . Additionally, the crisis led to the establishment of municipal health boards, proper quarantine facilities for incoming ships, and municipal hospitals all across the country.

5

The Triangle Shirtwaist Factory Fire (1911)

Nowadays we expect any factory or building to have proper fire and safety systems in place, but not so long ago safe working conditions were not a given. Places like the Triangle Shirtwaist Factory in New York not only lacked fire alarms, sprinklers, and fire escapes, but also locked their doors during work hours to prevent unauthorized breaks and workers' union gatherings . On March 25, 1911, when a pile of rags caught fire, the single fire escape collapsed and, with firefighters' ladders only able to reach six of the ten floors, the factory became a deadly trap that took the lives of 146 workers.

New Yorkers were outraged by the conditions that led to the tragedy, and public pressure led to the establishment of an investigating commission. As a result, more than 30 safety laws were passed , making fire drills, sprinklers, fire escapes, and emergency exits mandatory, among other measures, all of which set a precedent for federal safety codes and protections. The event also strengthened labor unions all across the country, who pushed for better working conditions.

6

The Dust Bowl (1930s)

The 1929 Wall Street Crash had already kickstarted the Great Depression, but the American crisis was still deepening. By the start of the 1930s, years of severe drought had hit the Great Plains (comprising ten states in the Midwest and Rocky Mountain regions) and had worsened an environment already depleted by human intervention. Native grasses that protected the topsoil had been eradicated through plowing, leaving the land vulnerable to wind erosion, while intensive cultivation of single crops had depleted the land. All this caused severe dust storms that hit the plains, further eroding the fields and suffocating the crops. In an agricultural recession, thousands of families migrated West looking for work.

The government’s response had diverse approaches. The Soil Conservation Service focused on changing detrimental agricultural practices through educating farmers on contour plowing, crop rotation, and shelterbelt tree planting. FDR’s "New Deal" plan established subsidies for farmers, requiring landowners to distribute a percentage of the subsidy to their laborers, and thousands of cattle were acquired, butchered, and distributed by the government to the affected population. Ultimately, the return of rain in the 1940s ended the drought and helped restore the soil, but the education, conservation, and relief mechanisms implemented by the government ensured that the Great Plains would not be as severely affected by drought in the future.

7

The Cold War (1945-1991)

The euphoria of the WWII victory in American politics was short-lived, as the climate quickly shifted to a new threat: communism. The Cold War deeply affected domestic American life, and the paranoia of the Red Scare prompted the government to invest thousands of dollars in defense , infrastructure, political propaganda, and counter-espionage. Sadly, this paranoia also allowed government officials and politicians, like Senator Joseph McCarthy, to persecute and blacklist thousands of suspected communist sympathizers without solid evidence.

While the desire to beat the USSR in public achievements resulted in the government funding the military industry, science education and research, and sports programs, espionage and propaganda were targeted through the creation of federal agencies —among them the CIA, the NSC, and the NSA— that managed domestic security, international intelligence, information, and propaganda.

8

The Revolutionary War Smallpox Epidemic (1775–1782)

The 1775 North American Smallpox epidemic lasted for nearly a decade, well beyond the Revolutionary War, but the military leaders of the Revolution were the ones to put in the efforts to contain it and prevent further spreading of the disease. In 1775, smallpox was a rampant disease in the American colonies, and a big part of the population had not been exposed to it due to isolation. This meant that, when colonists from rural areas joined the Continental Army, overcrowded military camps became a hotspot of contagion. It is estimated that smallpox caused more casualties than the fighting itself.

While smallpox decimated the Revolutionary Army, the British, who had been traditionally exposed to the disease, were immune to it. Recognizing the need to stop the spread of the disease, George Washington ordered a secret mass immunization of the troops in 1777 , a measure that drastically lowered the mortality rates among the army. While several founding fathers were in favor of mass inoculations and better public health policies, most of the colonists were distrustful of vaccinations and of government-mandated health policies. The success of Washington’s mass inoculation showed that public health policies could make the difference, and paved the way for later policies and health systems.

9

The Cholera Waves (1832–1866)

The U.S. went through three major cholera waves in 1832, 1849, and 1866, with tens of thousands of casualties, economic crises, and mass panic. Rapidly growing cities lacked proper sewage, and rancid water accumulated in the unpaved streets, while overcrowding and poor living conditions furthered the contagion. New travel methods such as the railroad helped introduce the disease to different regions, while doctors blamed the epidemic on "bad air" or a divine punishment.

It was not until the 1866 wave that city governments decided to change their approach to the health crisis. New York was the first city to establish a Metropolitan Board of Health, which focused on improving sanitary conditions and reforming the hospital system. Police forces encouraged (or forced) residents to clean their yards and remove manure and rotten waste, while the city strived to maintain clean streets and build sewage systems. By the time the third cholera wave hit New York, the city was prepared, and the number of casualties was much lower. Following its example, other major cities established their own permanent boards of health, implemented municipal health codes, improved their hospitals, and constructed underground sewers.

10

The Smoking and Lung Cancer Crisis (1960s)

Although tobacco had been popular for decades, the 20th century saw a rise in consumption thanks to aggressive cigarette marketing campaigns in print, radio and television. Smoking was allowed everywhere, and it was portrayed as stylish and smart in movies and magazines. There was a lack of education about the addictive properties of nicotine and the chemicals present in commercial cigarettes , a fact that the tobacco industry was eager to keep concealed. By the 1960s, lung cancer and heart disease numbers had risen dramatically, forcing the government to address the situation.

The 1964 Surgeon General’s report was the first to publicly link lung cancer and heart disease with tobacco consumption. Following several reports by other specialists , public opinion about cigarettes drastically shifted, despite the efforts of the tobacco industry . In 1965, Congress passed a law requiring mandatory health warning labels on cigarette packaging, and in 1971, cigarette radio and TV ads were outlawed. As a result, from the 1960s to the 2010s, cigarette consumption decreased by nearly 50%.

11

The Pure Food and Drugs Act (1906)

If you are the kind of person who religiously scans the ingredient list on food and medicine labels, you might not know that these labels exist thanks to a novel (and several journalists' investigations). In the late 19th century, increased food and medicine demands led manufacturers to sell tainted or unsafe products with false labels and filled with unsafe preservatives. Factory sanitary conditions were also subpar, which led many journalists to write about the issue. In 1906, Upton Sinclair’s novel The Jungle described the meat-packing industry practices in a graphic and revolting way, which caused mass outrage.

The Pure Food and Drugs Act of 1906 was the first of a series of laws passed by Congress to address the issue. It created a federal agency (now called the FDA) responsible for overseeing food and drug manufacturing , banned a series of commonly used substances and active ingredients, outlawed the sale of spoiled or contaminated food, set an inspection system for factories, and acted as a baseline for future consumer protection laws.

1

Arizona skips Daylight Saving Time

Image: Christoph von Gellhorn

This is partly true because most of the state doesn’t bother with Daylight Saving Time . They stopped changing the clocks back in 1967. The exception is the Navajo Nation, which stretches into Utah and New Mexico and keeps DST so all its communities stay on the same schedule. Now, as for the smaller Hopi reservation, inside the Navajo Nation, it sticks with Arizona time… Yes, quite confusing if you’re not a local.

2

Georgia isn’t really the Peach State

Image: Jessica Furtney

Georgia loves its peaches, sure, but the state’s top fruit money-maker is actually blueberries . In recent years, blueberries have brought in several times more cash for farmers than peaches. Meanwhile, California grows far more peaches than Georgia ever has. The nickname stuck from the old days when Georgia peaches were famous for their flavor, not their volume. So while the pride is real, the peaches aren’t quite the powerhouse people may think.

3

Nevada didn’t record the hottest US temperature

Image: tommao wang

You probably think of Nevada’s desert heat as unmatched, but the all-time record belongs to California’s Death Valley . In July 1913, it hit a mind-melting 134 degrees Fahrenheit, the hottest temperature not only in America but the hottest ever recorded on Earth!

4

Minnesota doesn’t have the most lakes

Image: Tom Conway

Minnesota proudly calls itself the "Land of 10,000 Lakes," but that’s selling itself short… The real number is closer to 12,000. However, Alaska wins this battle . The state has more than 3 million lakes over five acres in size. In fact, Alaska contains over 40 percent of the nation’s surface water. If you love fishing, kayaking, or just staring at a quiet stretch of water, the true lake capital of America is far up north.

5

Pineapples aren’t native to Hawaii

Image: Christian Joudrey

Pineapples are everywhere in Hawaiian imagery, but the plant actually comes from South America , mainly Paraguay and southern Brazil. Spanish explorers likely brought them to Hawaii in the 1500s after spreading them across the Pacific to places like the Philippines and Guam. Hawaii’s climate turned out to be perfect for growing them and by the 1900s, the islands were producing so many pineapples that the fruit became a symbol of Hawaii itself.

6

Maine isn’t the country’s easternmost point

Image: Chris Henry

If you’re a Geography geek, you’ll love this one. You might picture Maine’s rocky coast as the eastern tip of America, but the actual easternmost point is thousands of miles away, on Alaska’s Semisopochnoi Island in the Aleutians. How is that possible? Well, that’s because it crosses the 180th meridian, putting it in the Eastern Hemisphere. That means part of Alaska technically sits farther east than anywhere in Maine.

7

The biggest US earthquake didn’t happen in California

Image: Lala Miklós

California has suffered some big earthquakes in its history, but the most powerful earthquake in America struck Alaska in 1964 . It hit Prince William Sound with a magnitude of 9.2. It was so strong it shook the ground for four and a half minutes and triggered massive tsunamis. In today’s dollars, the damage would total more than $2 billion. Alaska sits on a collision zone of tectonic plates, making it one of the world’s most seismically active regions.

8

The Everglades isn’t America’s biggest swamp

Image: Joshua J. Cotten

A lot of people picture the Florida Everglades when they think of swamps, but technically, the Everglades isn’t a swamp at all. The real title of the largest swamp in the United States goes to Louisiana’s Atchafalaya Basin , which spans about 1.4 million acres. This swamp has a vast mix of cypress forests, bayous, and marshes, and it’s more than twice as productive as the Everglades when it comes to wildlife and plant life.

9

Big cities aren’t always capitals

Image: Mackenzie Cruz

It surprises people how often the biggest city isn’t the state capital . New York City? Not the capital… Albany is. Chicago? Nope, that honor goes to Springfield. Pennsylvania’s capital isn’t Philly or Pittsburgh, it’s Harrisburg. Even California’s capital isn’t L.A. or San Francisco, it’s actually Sacramento. Out of fifty states, only seventeen have their most populous city as the capital.

10

Alaska isn’t divided into counties

Image: Rod Long

Alaska likes to do things its own way. Instead of counties, it’s split into boroughs , and a massive area known as the Unorganized Borough has no local government at all. People out there don’t pay property taxes, but that freedom comes with challenges, limited services, fewer job options, and tough living conditions.

1

A renovation project saved thousands of lives on 9/11

On September 11, 2001, American Airlines Flight 77 struck the Pentagon at 9:37 a.m., killing 189 people. Few people know this part: the death toll could have been much higher. But there was a renovation project underway at the time of the attacks.

The Pentagon’s five-sided structure is divided into five "wedges," and workers had been renovating them one at a time. Flight 77 struck the wedge that had just been completed. Of the 4,500 people who normally worked in that section, only about 800 had moved back in. Without the reinforced construction and the incomplete occupancy, experts believe the casualties would have been catastrophically higher.

2

The Cold War and the hot dog stand

In the middle of the Pentagon’s five-acre center courtyard once stood a modest hot dog stand. According to a Cold War legend (one still retold by official Pentagon tour guides on every public tour), between the 60s and the 80s, Soviet satellite images tracked large groups of high-ranking military officials converging on that small building at the same time every day.

Soviet intelligence reportedly concluded the structure must be the entrance to some underground bunker in America. In reality, all it did was sell lunch. In 2006, the original stand was torn down, and a sandwich shop was built in its place.

3

Its construction began on September 11th, exactly 60 years before the attack

Builders broke ground on the Pentagon on September 11, 1941. That was exactly 60 years to the day before the September 11, 2001, terrorist attacks that would strike the same building.

Construction had been ordered by Army Brigadier General Brehon Somervell, who wanted a permanent headquarters for the Defense Department to replace its then-17 scattered offices across Washington, D.C.

The project was extraordinarily ambitious: plans called for the world’s largest office building to be completed in just 16 months. In the end, the conception, design, and construction of the entire Pentagon building took a total of 15 months.

4

The same person oversaw its construction and the Manhattan Project

Colonel Leslie Groves of the Army Corps of Engineers took charge of Pentagon construction in August 1941. He worked six days a week and drove his team relentlessly, at one point employing more than 15,000 workers around the clock.

When the Pentagon was finished in January 1943, Groves was assigned to lead the Manhattan Project, America’s secret program to build the atomic bomb . His deputy, Captain Robert Furman, followed him into the Manhattan Project as chief of foreign intelligence. Together, the men who built the world’s largest office building went on to produce the weapon that ended World War II.

5

Why is it shaped like that?

The Pentagon’s iconic five-sided shape was the consequence of a geographic accident. The original site selected for the building, near Arlington Cemetery, **happened to be bordered on five sides by roads. **Architects designed the structure to fit those boundaries, producing a pentagonal floor plan. Then President Franklin D. Roosevelt intervened: worried the massive building would obstruct the view of Washington, D.C. from Arlington, he ordered the site moved to its current location along the Potomac River. But the five-sided design had already been drawn up, and nobody changed it.

6

It was the first desegregated building in Virginia

When the Pentagon was designed in 1941, segregation was the law in Virginia. Original plans called for doubled bathroom facilities: separate ones for Black and white employees, as required by Virginia statute. But President Roosevelt had signed Executive Order 8802 in June 1941, prohibiting racial discrimination in federal employment and government contracting.

As a federal building, the Pentagon was exempt from Virginia law. It became the only building in the state where segregation was not enforced. A fully desegregated federal workplace that opened in 1943. The doubled bathrooms were built anyway, as the plans were too far along to revise, but were never used as separately designated spaces.

7

Its construction was surprisingly frugal and incredibly fast

Ground broke on September 11, 1941, and construction finished on January 15, 1943, just 16 months later. More than 15,000 workers were on site around the clock. Wartime office shortages were so severe that employees moved into completed wings before the rest of the building was finished. Steel was too scarce to use extensively, so builders relied almost entirely on reinforced concrete. The 689,000 tons of sand and gravel required came directly from the nearby Potomac River, cutting transportation costs. The project was budgeted at $35 million, but the final bill was $63 million, which would translate to over $900 million in today’s dollars.

8

You can walk between its farthest points in only 7 minutes

The Pentagon is the world’s largest low-rise office building: 6.5 million square feet of space, which is three times the total floor area of the Empire State Building. Each of its five outer walls is 921 feet long. It has 7,754 windows and 17.5 miles of corridors. Approximately 26,000 military and civilian employees report for work there every day.

Despite that scale, the building’s concentric ring design is so efficient that it takes only about seven minutes to walk between its two farthest points.

9

The man who secretly lived inside its walls

During construction, Colonel Groves drove his deputy, Captain Robert Furman, so relentlessly that Furman rarely left the building. To cope, Furman had contractors build him a small, windowless apartment hidden inside the walls of the Army’s Ordnance Division. In this private room, he could sleep and shower without leaving the premises.

When construction ended and personnel dispersed, knowledge of the hidden room was never passed on to building management. Months later, when Furman returned to Washington on Manhattan Project intelligence business, he found the apartment undiscovered and exactly as he’d left it.

For over a year, he would slip back to the Pentagon, pop open a wall panel, spend the night, and emerge in the morning with his suitcase. He was finally caught in 1943 and forced to surrender the keys. It was never disclosed whether the secret apartment was maintained or eventually absorbed back into the official floor plans.

10

It houses over 30 restaurants, including everyone's favorite chains

The Pentagon feeds roughly 26,000 people a day, and its dining options read less like a military headquarters and more like a mall food court. The main Concourse Food Court, which opened in September 2009 and seats 875 people, is the largest of several dining areas.

Confirmed chains currently inside the building include McDonald’s, Five Guys, Subway, Popeyes, Starbucks (multiple locations), Dunkin’ (two locations), Panera Bread, Taco Bell, Panda Express, Baskin-Robbins, Potbelly, Jamba Juice, and Moe’s Southwest Grill, among others. The building also houses a CVS pharmacy, a florist, a jeweler, and a dry cleaner. In the summer of 2024, Potbelly became the first restaurant to open in the center courtyard. Yes, the very spot where the legendary Cold War hot dog stand once stood.