Before Radar: How Giant Acoustic Mirrors Detected Enemy Aircraft in WWI and WWII

In 1887, Susanna Salter became the first female mayor in the United States, elected in Argonia, Kansas. Her nomination was initially a prank by men opposing women in politics. However, she won by a landslide and served effectively, inspiring the women’s suffrage movement and breaking barriers for women in leadership.

A Greek prime minister in 1830’s tried to spread the potato in Greece but people weren’t interested so he put armed guards in front of shipments of potatoes so people would think they were important. People later started stealing these potatoes a lot which spread the crop to all of Greece.

In 1919, J.D. McMahon convinced investors to fund a 480-foot skyscraper, but he labeled the plans as 480 inches, building a 40-foot structure instead. After taking $200,000, he won in court since the plans matched what he built.

The ancient city of Jericho is the world's oldest walled city, with evidence of stone fortifications dating back nearly 9000 years.

Irene Sendler was the Zegota resistance group's head of the children's department. She risked her life to smuggle children out of the Warsaw ghetto, place them with Polish families or orphanages, give each child a new identity, and keep records so that they could be returned to their families. In 1943, the Gestapo arrested and sentenced her to death, but she was rescued by Zegota.

The German town of Nördlingen is embedded with 72,000 tons of microscopic diamonds. About 15 million years ago, a meteorite hit this region, and the impact created a massive depression and formed rocks containing diamonds, glass, and crystals. The town was built in the impact crater sometime around 898 CE.

In 1937, a gas leak in the basement at the local school in New London, Texas caused a massive explosion which killed almost 300 children and teachers, the deadliest school disaster in US history. Adolf Hitler even sent his condolences by telegram.

The final image of 14-year-old Australian Keith Sapsford, who aspired to travel the world. In February 1970, he sneaked into the wheel-well of a plane flying from Sydney to Tokyo. It opened mid-air & fell out. When a photographer was testing a new lens, he captured this moment on film and was surprised when it developed.

Philippines is the world’s largest supplier of nurses, supplying roughly 25% of all overseas nurses worldwide.

The assassination of King Alexander of Yugoslavia marked a pivotal moment in the country's history. This article delves into the rise and reign of King Alexander, exploring his early life and ascension to the throne. It also examines the political and social climate in interwar Yugoslavia, setting the stage for the tensions and challenges that ultimately culminated in his tragic assassination. By understanding the context in which this event unfolded, we can better grasp the significance and impact it had on the nation and its future.

A man named Joseph Bolitho Johns (A.K.A Moondyne Joe) broke out of Australian prisons so many times that the police were compelled to build a special cell just for him. He escaped from that as well.

To prevent tourists from stealing their beer glasses, some bars in Belgium require people to hand over one of their shoes as a deposit which is then put in a basket and hung from the ceiling. These shoe baskets have also become an attraction.

Scientists recreated an Anglo-Saxon manuscript-based 9th century onion and garlic eye remedy and discovered that it killed 90% of antibiotic-resistant staph bacteria (MRSA).

If you ask your friends what's the most famous ship in history the answer in most cases will be the same, of course the legendary Titanic. Its history is full of mysteries, at first it was a source of hope and national pride as well as proof of the triumphs of mankind but it soon became a source of nostalgia and pain, the extent of which cannot be described in words.

Hollywood actress Hedy Lamarr was also a mathematician and the inventor of frequency hopping spread spectrum, a technology still used for bluetooth and wifi

Before women were allowed to run in the Boston Marathon, Kathrine Switzer participated. A race official attempted to forcefully remove her from the race in 1967, but her boyfriend pushed him down. She was the first female finisher who had a numbered entry in the race.

In 1971, a high school student was sucked out of an airplane after it was struck by lightning. She fell 10,000 feet to the ground while still strapped to her chair and survived. Only to endure a 9-day trek to the nearest civilization.

Ching Ling Foo and Chung Ling Soo were two magicians from the early 20th century who were bitter rivals. While Ching Ling Foo was genuinely Chinese, Chung Ling Soo was actually a New Yorker named William Robinson.

A man named Nicholas Winton saved 669 kids during WWII and lived almost all his life without letting people know.

In 1986, while doing a night shift at the hospital, Sandra Clarke, a registered nurse, was asked by an elderly patient to stay. She promised to be back after checking on her other patients, but by the time she returned, the gentleman had passed away. Clarke became one of the key figures in launching No One Dies Alone, a program that allows volunteers to sit with terminal patients who have no one else.

From 1982-1983, three men in Allentown PA competed in a radio contest in which they lived on top of a billboard in tents. Whoever stayed up longest would win a house. Due to economic pressure from the recession, none of the contestants wanted to give up, so the contest lasted almost 9 months.

Henry Ford was the first Industrial Giant to give his employees both Saturday and Sunday off in the hope of encouraging more leisurely use of automobiles and thus popularizing the concept of the "weekend."

Actor Rebecca Hall had serious reservations about tackling the macabre story around why Chubbuck killed herself in 1974. So what changed her mind?

A protestant man and a Catholic woman who weren't allowed from being buried together in a graveyard in 19th-century Holland turned their graves into a monument showing them holding hands across the wall separating them.

At the 1936 Summer Olympics, two Japanese pole vaulters named Sueo Oe and Shuhei Nishida tied for second, but they declined to compete against each other. As a result, Nishida was awarded the silver medal and Oe won a bronze medal. Upon returning to Japan, the athletes had their medals cut in half and spliced together to create new "friendship medals," which were half silver and half bronze.