Century eggs, also called pidan, are a traditional Chinese food that dates back to at least the Ming Dynasty (1368–1644). They are made by preserving duck, chicken, or quail eggs in a mixture of clay, ash, salt, quicklime, and rice hulls for several weeks or months.

In the 1990s, engineers designed and built a state-of-the-art bridge over the Choluteca River in Honduras. Known for severe weather, the region needed a strong, durable bridge.

In 1950, the A.C. Gilbert Company released the Gilbert U-238 Atomic Energy Lab, a children’s science kit designed to teach nuclear physics. It included actual radioactive materials, such as U-238 ore samples, and instruments like a Geiger counter to measure radiation.

In 1896, Missouri-Kansas-Texas Railroad agent William Crush organized a staged train collision in Texas. A temporary town named “Crush” was built north of Waco, complete with carnival attractions, food stands, and even a wooden jail.

In 1985, during the planning of Bucharest’s M2 metro line, First Lady Elena Ceaușescu reportedly ordered the station’s removal. She believed workers and students needed more exercise and should walk instead of taking the metro.

In 1979, a farmer in Pará, Brazil, discovered a gold nugget in Serra Pelada. News spread quickly, and within months, tens of thousands of prospectors, known as garimpeiros, rushed to the site, transforming it into one of the world’s most chaotic gold mines.

Yakhchāls, meaning “ice pits” in Persian, were developed in ancient Iran over 2,000 years ago. These dome-shaped structures, built from heat-resistant mud bricks, were designed to store ice and food in the hot desert climate. Some were connected to qanats (underground canals) to enhance cooling.

On July 24, 1943, John E. Gregory Sr. and his wife, Lorena, sat on their porch in Kure Beach, North Carolina. The coastline was dark due to blackout regulations, meant to protect merchant ships from German U-Boats.

Albert Stevens, a house painter from Ohio, was admitted to the University of California Hospital in San Francisco in 1945 with what doctors mistakenly believed was terminal cancer.

In December 1944, Japanese intelligence officer Hirō Onoda was sent to Lubang Island, Philippines with orders to conduct guerrilla warfare and avoid capture.