In May 1944, weeks before the D-Day invasion, British intelligence noticed unusual activity in the Daily Telegraph crossword. Key codenames like “Utah,” “Omaha,” “Overlord,” and “Neptune,” crucial to the Allied invasion plans, appeared as answers in the puzzles.

On March 11, 1970, British Rail engineer Charles Osmond Frederick filed a patent for a revolutionary concept: a flying saucer powered by nuclear fusion. The patent, GB1310990, outlined a craft designed for supersonic speeds and vertical takeoff and landing.

In 1895, Jessie Allan, a librarian in Omaha, died of tuberculosis. Her death fueled fears that contaminated library books could spread deadly diseases like tuberculosis and scarlet fever. This panic, known as the “great book scare,” gripped the public in the late 19th and early 20th centuries.

In 2003, the New Zealand government proposed a tax targeting methane emissions from livestock to combat greenhouse gases. Methane, a potent greenhouse gas, accounts for nearly half of New Zealand’s emissions due to its vast agricultural sector, particularly sheep and cattle farming.

On November 11, 1918, the world stood on the brink of peace. The armistice had been signed earlier that morning, set to take effect at 11:00 a.m. Despite this, fighting continued in the final hours as troops awaited the official ceasefire.

In the late 1800s, tuberculosis was the leading cause of death in the U.S., killing one in seven people. The Ladies’ Health Protective Association (LHPA) campaigned to combat the disease, believing spit-filled sidewalks spread the bacteria. In 1896, they succeeded in pushing New York City to ban public spitting.

In the early 1960s, Ed Dwight, a U.S. Air Force test pilot, was poised to make history as NASA’s first African American astronaut candidate. Born in Kansas City in 1933, Dwight’s talents in engineering and aviation earned him a place at the prestigious Aerospace Research Pilot School, where he trained alongside aviation legends like Chuck Yeager.

In 1930, 16-year-old George Nissen from Cedar Rapids, Iowa, attended a circus and watched aerialists land on safety nets. Inspired by their soft bounces, Nissen envisioned a device that could allow continuous bouncing. Using canvas and wood, he built his first prototype, even dismantling his own bed in pursuit of his dream.

On February 17, 1864, the Confederate submarine H.L. Hunley approached the USS Housatonic off Charleston Harbor. The 40-foot sub, powered by a hand-cranked propeller, carried a 135-pound black powder torpedo mounted on a spar at its bow. After hours of stealth, the Hunley pressed its torpedo against the Union ship, triggering an explosion that sank the Housatonic within minutes.

Odd-eyed cats, known scientifically as having heterochromia iridis, possess two different-colored eyes due to a genetic condition. This striking appearance is most common in white or mostly white cats, often linked to the kit gene responsible for coat pigmentation.