1

Coca-Cola vs. Pepsi

The "Cola Wars" have been going on for decades, but it seems that there’s no resolution in sight. In the late 1970s, both companies started directing their marketing campaigns against each other, with mixed results , though Coca-Cola always seems to be half a step ahead of Pepsi. They have both gained a loyal following, but the war remains as strong as ever.

2

Hamilton vs. Burr

Political rivalries are not uncommon in America, but few include a deadly duel involving a sitting vice president. The animosity between Alexander Hamilton and Aaron Burr intensified after Burr won a Senate seat from Hamilton’s father-in-law, Philip Schuyler. During the presidential election of 1800 and the New York gubernatorial election of 1804, Hamilton actively supported candidates opposing Burr. Deeply angered by Hamilton’s continued opposition and public criticism, Burr challenged him to a duel, and the rest is history.

3

Yankees vs. Red Sox

Sports fans are dedicated, but few rivalries match the intensity of those who support the New York Yankees and the Boston Red Sox. They have been rivals since their first meeting more than 120 years ago, with the Yankees often being perceived as a dominant team, while the Red Sox filled the role of the underdog . Their enmity deepened dramatically in 1920, when Babe Ruth was sold to the Yankees. What followed was an 86-year championship drought for Boston, popularly known as the "Curse of the Bambino," which the Red Sox finally broke in 2004.

4

Miami vs. Tampa

Can a sandwich cause a rift between two cities? It sure can. Cuban sandwiches are a Floridian staple , and their construction is often considered set in stone: ham, roast pork, Swiss cheese, pickles, and mustard on Cuban bread, served pressed. Unless you live in Tampa. There, a strong Italian influence has translated into the addition of Genoa salami to the Cuban sandwich, much to the outrage of their Miami neighbors.

5

Mark Twain vs. USPS

Renowned writer Mark Twain had no qualms about criticizing the things he disliked, and he surely disliked the United States Postal Service . He thought it costly, inefficient, and overregulated, and he made sure to let everyone know in articles, complaint letters, and conversations with influential figures. In a poetic turn of events, the USPS released a Mark Twain commemorative stamp in 2011.

6

Hatfields vs. McCoys

One of the most infamous feuds in American history, the rivalry between the Hatfield and McCoy families shook the West Virginia-Kentucky area for three decades . Starting with the murder of a McCoy who was returning home from war, the hostilities and deaths escalated to a point where the Supreme Court was forced to intervene.

7

Edison vs. Tesla

Many inventors were involved in the so-called "War of the Currents," waged on electric power systems, but Thomas Edison and Nikola Tesla are the most remembered. Edison championed direct current (DC) electrical systems, which operated at relatively low voltages and were suited to short-distance distribution. Tesla, working with George Westinghouse, promoted alternating current (AC), which could be transmitted over long distances more efficiently. Despite Edison’s strong campaign to discredit AC and its proponents, it ultimately became the standard power system.

8

Joan Crawford vs. Bette Davis

Rivalries are everywhere in the film industry, but some become the stuff of legends. Allegedly, the feud between Joan Crawford and Bette Davis was never as intense as portrayed. While the two actresses did clash at times over personality differences, professional competition, and rumored romantic entanglements, much of the rivalry’s enduring reputation was fueled by gossip columns and sensational press coverage. And their respective film studios took advantage of it.

9

Burger King vs. McDonald’s

The fast-food industry has always had McDonald’s as one of its key players, but other companies have given their all to take that position. Burger King is one of McDonald’s oldest challengers , and has repeatedly tried to influence their customer base through a series of aggressive and often tongue-in-cheek marketing campaigns. While other brands, such as Wendy’s or Five Guys, have dipped their toes in the "Burger Wars," McDonald’s and Burger King remain two of the biggest names in the industry.

10

Edgar Allan Poe vs. Rufus Wilmot Griswold

While Poe looms far larger than Griswold in the modern American mind, much of what the public believes about the "Nevermore" poet was influenced by his rival . Their feud began with the publication of a poetry anthology by Griswold, which displeased Poe due to its contents and criticism of his own poetry. The animosity intensified when they both vied for the same editorial position and, reportedly, the affections of the same woman. After Poe’s death, Griswold wrote an obituary and a biography filled with attacks and slander, which contributed to the idea of Poe as a drunkard and a madman.

1

A Presidential curse

For almost 140 years, U.S. presidents elected in years ending in zero died while in office. It happened to William Henry Harrison (1840), Abraham Lincoln (1860), James A. Garfield (1880), William McKinley (1900), Warren G. Harding (1920), Franklin D. Roosevelt (1940), and John F. Kennedy in 1960 . Ronald Reagan, elected in 1980 , broke the curse by surviving an assassination attempt.

2

Mark Twain and Halley’s Comet

In the year Mark Twain was born, 1835, Halley’s Comet passed by Earth. The great writer famously predicted he’d "go out with it" as well . Indeed, he passed away in 1910, the next time the comet appeared.

3

Jefferson and Adams

A patriotic yet somber coincidence, indeed. John Adams and Thomas Jefferson, the second and third U.S. presidents, both died on July 4, 1826 —exactly 50 years after the signing of the Declaration of Independence.

4

Hoover Dam’s first and last casualties

The construction of the Hoover Dam was a long and difficult process, claiming over 100 lives. The first person to die was J.G. Tierney , and the last recorded death was his son , Patrick Tierney.

5

Lincoln and Kennedy

Abraham Lincoln and John F. Kennedy were elected 100 years apart (1860 and 1960). Both suffered fatal head wounds and were succeeded by presidents named Johnson. Their assassins each had three names: John Wilkes Booth and Lee Harvey Oswald. Both were assassinated on a Friday while sitting next to their wives at the time that it happened.

6

Charles Francis Coghlan’s last journey

Actor Charles Francis Coghlan died in Texas in 1899. But his casket was lost at sea during a hurricane. Eight years later, his coffin washed ashore near his birthplace in Prince Edward Island, Canada, more than 3,000 miles away.

7

The Titanic coincidence

A few years before the Titanic sank, Morgan Robertson wrote a short book called Futility , about a massive "unsinkable" ship called the Titan that hit an iceberg and sank. The tale describes a ship with a similar size and a similar lack of lifeboats to the famous vessel.

8

Dennis the Menace

Two comic strips featuring a character named Dennis the Menace debuted in British and American outlets, respectively, on March 12, 1961—only a few hours apart. However, the two creators did not know each other and had no idea of the other’s work.

9

Jim Lewis and Jim Springer

Identical twin brothers separated at birth , Jim Lewis and Jim Springer, were reunited at age 39 and discovered many coincidences: both married women named Linda , divorced, and then remarried women named Betty. Both had dogs named Toy and drove the same model of car. Both grew up with an adopted brother named Larry and had sons whom they named James Allan.

10

Disney magic

A soon-to-be-married couple, Alex and Donna , were looking through old photos to include in their wedding video. They found one photo of Donna posing on a childhood trip to Disney World in 1980. And in the background, they spotted Alex being pushed in a stroller by his father.

11

Moped meets taxi, twice

In 1975, 17-year-old Erskine Lawrence Ebbin was struck by a taxi in Bermuda while riding his moped. A year later, his brother Neville , also 17 at the time, was riding the same moped when he was struck by the same taxi —with the same passenger—on the same street.

12

Lightning strike survivor

Being hit by lightning is an extremely rare occurrence. Park ranger Roy Sullivan was struck not once, but seven times between 1942 and 1977 —and survived them all. The strikes hit him in a fire tower, in his truck, in his yard, while patrolling, and more. His unusual record earned him the nickname "Human Lightning Rod."

1

Tipping is expected, not optional

In the U.S., leaving a tip is considered part of the cost of the meal, not a bonus . Diners typically add 15 to 20 percent to the bill, especially in full-service restaurants.

This practice exists because many servers earn lower base wages and depend on tips. In many other countries, service charges are already included in the bill, making the American system feel unusual or even confusing.

2

Free refills are the norm

Many American restaurants offer unlimited refills on soft drinks, iced tea, and coffee . Once you order a beverage, it often keeps coming at no extra cost.

Elsewhere, each drink is typically billed separately, and refills are rarely free. For visitors to the U.S., this can feel surprisingly generous compared to their dining experiences at home.

3

Ice comes with everything

In the U.S., drinks are often served filled with ice, whether it’s soda, water, or even juice . It’s considered a refreshing standard, especially in warmer climates.

In many other countries, ice is used sparingly or avoided altogether. Some people prefer drinks at room temperature, making the American preference for ice stand out immediately.

4

Portions are huge

American restaurant portions are known for their size. Many meals are large enough to serve more than one person or to provide leftovers for later .

In contrast, other countries tend to serve smaller, more balanced portions. The American approach reflects a culture of abundance, but it can be unexpected for first-time visitors.

5

Taking leftovers home is typical

Asking for a take-home container, also known as a "doggy bag," is a normal part of dining in the U.S. Restaurants are prepared for it, and many people expect to leave with leftovers.

In some countries, this practice is less common or even discouraged. The American "doggy bag" reflects both larger portion sizes and a practical approach to reducing food waste.

6

Waiters check in frequently

In the U.S., servers often return to the table several times during a meal . They may ask how everything tastes, refill drinks, or check whether anything else is needed.

While meant to be attentive, this can feel intrusive to foreign visitors. In many other cultures, less interruption is preferred, and diners typically signal the server only when necessary.

7

Customizing your order is normal

In the U.S., it's common to request changes to a dish, such as removing ingredients or adding extras . Restaurants are usually flexible and expect these requests.

In other parts of the world, altering a menu item may be frowned upon. The American habit reflects a strong emphasis on personal choice and individual preferences.

8

Tap water is served automatically

In American restaurants, a glass of tap water is often brought to the table without being requested . It is typically free and refilled throughout the meal.

In many other countries, bottled water is the default and must be ordered separately.

9

Meals tend to move quickly

Dining in the U.S. often follows a faster pace. Food arrives quickly, and the bill may be brought shortly after the meal is finished .

In contrast, in many other cultures, meals are meant to be long, relaxed experiences. The American approach reflects efficiency and a faster daily rhythm.

10

Splitting the bill is common

In the U.S., restaurants commonly allow separate checks , making it easy for each person to pay their share. This is especially helpful in group settings.

In many other countries, splitting the bill can be more complicated or is actively discouraged. The American system emphasizes convenience and individual responsibility at the table.

11

Sweet foods are common at breakfast

Breakfast in the U.S. often includes sweet items such as pancakes, waffles, pastries, or cereal, alongside eggs, bacon, and toast. Syrup and sugar are common additions at the start of the day.

In many other countries, breakfasts tend to be exclusively savory, featuring foods like bread, cheese, or eggs. The American preference for sweetness can feel like a treat to visitors.

12

Dining is generally casual

While there are many exceptions at five-star, fine dining establishments, American dining culture is typically relaxed, with fewer formal rules about dress or behavior . People often eat out in casual clothing and informal settings.

In other countries, meals, especially dinner, can be more formal events. The American style reflects a focus on comfort rather than tradition.