Firstly, when the telephone was first invented, the operators were all men. However, their rudeness and lack of patience caused resentment among many customers. Therefore, in 1878, female operators were replaced.

Second: To test the durability of their phones, Samsung created a robot that looked exactly like a human buttock. To make it more realistic, they even dressed it in jeans... When this robot was working, it exerted approximately 100 kilograms of force on the phone.

Thirdly, in 1920, the very famous actress March Bellamy began living separately from her husband on the fourth day of their marriage and divorced him three months later... Her reason was that her husband liked to eat eggs and ham, which were "common" foods and did not match her status...

Fourthly, thanks to efficient recycling technologies and material properties, 75% of the aluminum produced globally is still in use today.

Fifth: Vietnam has the lowest obesity rate in the world at 2.1%, followed by Uganda at 5.1%... while the United States has the highest obesity rate at 41.9%.

Sixth: Bruce Lee's films grossed a total of $741 million, which is equivalent to about $4 billion today, while the total investment for the films at the time was only $2 million.

Seventh: If you look closely, you'll find a snake eating a person inside the Alfa Romeo logo.

Eighth: The buttons on women's blouses are all located on the left side. This is because in the beginning, noblewomen were dressed with the help of maids, and placing the buttons on the left side made it easier for the maids to fasten them.

Ninth: Adolph Sachs, the inventor of the saxophone, experienced many accidents as a child. He once fell from a height of about three stories, landed in a frying pan, accidentally drank acidic water, and even swallowed a safety pin... The worst incident was being burned in a gunpowder explosion, followed by falling into a river...

Tenth: To date, the youngest patient diagnosed with Alzheimer's disease is only 19 years old, and he began showing symptoms at the age of 17.

Eleventh: Approximately 880,000 people die from secondhand smoke globally each year... and women account for about 64% of these deaths...

The twelfth city in the world is Hamilton, the capital of Bermuda, where the cost of living is 47.42% higher than in New York City.

Thirteenth: In 1999, Sergio Motsonan, from a small village in South Africa, signed up for the famous Comrades Marathon. However, midway through the race, he swapped clothes and shoes with his twin brother after entering a portable toilet. Using this method, they finished 9th in the race, winning a prize of $500, which was a considerable sum for them. However, the watches they wore on their wrists betrayed them. They were stripped of their prize money and medals and banned from participating in the Comrades Marathon Association for ten years.

Fourteenth: Svalbard, located in Norway, is the only visa-free zone in the world to date. Regardless of your country of origin, you can work and live here indefinitely.

The fifteenth: In 1956, Rome and Paris signed an agreement to become sister cities, declaring in the agreement that "only Paris is worthy of Rome; only Rome is worthy of Paris."

Sixteenth: From 1962 to 2021, a new James Bond film was released on average every two years and three months. Although almost all the new films were profitable, the first film still had the highest return on investment.

Seventeenth: In ancient Rome, people added lead-containing syrup to wine to improve its flavor and color. Roman nobles who enjoyed drinking wine at that time ingested an average of about 250 micrograms of lead per day... According to some historical records, Caligula, Nero, and several other Roman emperors suffered from chronic lead poisoning, resulting in mental deterioration.

Eighteenth: The world's longest-living dog was a purebred Arlando Mastiff from Portugal, who lived to be 31 years and 165 days old, equivalent to 217 human years...

Nineteenth: The number of abdominal muscles is not fixed at six; it varies from person to person. For example, Schwarzenegger only has four abdominal muscles... This is because the number of abdominal muscles is determined by genetics. People are born with different numbers of fascia bands... The fewest have four abdominal muscles, most have six, and a very small number have ten.

The twentieth: The meerkat is arguably the most ferocious mammal in the world. 20% of meerkats are brutally killed by another meerkat, usually a family member, such as their mother or siblings...