
The British Navy did not see the military value in Drebbel's invention, instead dismissing it as more of a spectacle than a weapon. In 1620, Dutch inventor Cornelis Drebbel built the world's first operational, navigable submarine while working under the patronage of King James I in London.

The S&P 500 set a record of 7,816.70 on August 13, 2026, then pulled back approximately 2% over the following two weeks as the 30-year Treasury yield touched 5.337%, its highest level in nearly two decades.