1858day.year

U.S. President James Buchanan inaugurates the new transatlantic telegraph cable by exchanging greetings with Queen Victoria of the United Kingdom. However, a weak signal forces a shutdown of the service in a few weeks.

President James Buchanan inaugurates the first transatlantic telegraph cable, briefly connecting Washington and London in 1858.
On August 16, 1858, President James Buchanan and Queen Victoria exchanged inaugural greetings over the newly completed transatlantic telegraph cable. The feat linked North America and Europe by instantaneous communication for the first time in history. Thousands of miles of undersea cable had been laid between Newfoundland and Ireland despite technical and financial challenges. Messages traversed the Atlantic in minutes instead of weeks by ship. However, the cable’s weak signal and insulation problems caused a failure just weeks after the ceremonial launch. Engineers retrieved and repaired the line, paving the way for more durable connections in subsequent years. The 1858 experiment nevertheless marked a major breakthrough at the intersection of technology and diplomacy.
1858 James Buchanan transatlantic telegraph cable Queen Victoria
1944day.year

First flight of a jet with forward-swept wings, the Junkers Ju 287.

The Junkers Ju 287 makes its maiden flight, showcasing an innovative forward-swept wing design.
On August 16, 1944, the German Junkers Ju 287 prototype took to the skies as the first jet aircraft with forward-swept wings. Developed under wartime secrecy, the unique wing layout aimed to improve low-speed handling and maneuverability. Engineers encountered structural challenges from wing bending but confirmed its aerodynamic advantages. Only a handful of prototypes flew before World War II ended, yet the Ju 287 influenced post-war aviation research. Its daring design paved the way for future explorations of unconventional aerodynamics.
1944 forward-swept wings Junkers Ju 287
1960day.year

Joseph Kittinger parachutes from a balloon over New Mexico, United States, at 102,800 feet (31,300 m), setting three records that held until 2012: High-altitude jump, free fall, and highest speed by a human without an aircraft.

Joseph Kittinger leaps from 102,800 feet, setting records for highest parachute jump, longest free fall, and fastest free-fall speed.
On August 16, 1960, as part of the U.S. Air Force's Project Excelsior, Major Joseph Kittinger ascended to 102,800 feet in a helium balloon over New Mexico. He then plunged into the stratosphere, executing the world's highest-altitude parachute jump. During his descent, Kittinger reached speeds over 614 mph, setting a record for human free-fall velocity. His free fall lasted more than four minutes before he deployed his chute, also achieving the longest uninterrupted free-fall. The mission provided vital data on high-altitude bailouts and human survival in near-space conditions. Kittinger's daring feat influenced the design of ejection seats and safety procedures in aerospace operations.
Joseph Kittinger New Mexico free fall
1989day.year

A solar particle event affects computers at the Toronto Stock Exchange, forcing a halt to trading.

A strong solar particle event on August 16, 1989, knocked out computers at the Toronto Stock Exchange, halting trading and exposing financial markets to space weather risks.
A powerful solar particle event struck Earth’s upper atmosphere on August 16, 1989, bombarding satellites and ground-based electronics with radiation. At the Toronto Stock Exchange, the surge caused computer malfunctions and corrupted trading data, forcing an unprecedented suspension of trading. Traders and market operators watched helplessly as screens froze and alarms sounded, revealing vulnerabilities in critical infrastructure. The incident spurred the development of space weather forecasting and more robust electronic shielding. Financial institutions worldwide adopted contingency plans for geomagnetic storms inspired by this disruption. It remains a landmark case in the intersection of astrophysical phenomena and global finance.
1989 solar particle event Toronto Stock Exchange