Lithium hydride
Before the Castle Bravo nuclear weapons test in 1954, it was thought that only the less common isotope lithium-6 would breed tritium when struck with fast neutrons. The Castle Bravo test showed (accidentally) that the more plentiful lithium-7 also does so under extreme conditions, albeit by an endothermic reaction.
Siege of Castelnuovo
The siege of Castelnuovo ended the failed campaign of the Holy League against the power of the Ottoman Empire in the Eastern Mediterranean. Charles V began negotiations with Barbarossa to attract him to the imperial ranks but in vain, and turned all his efforts in a great expedition against Algiers to destroy the Ottoman sea power. This expedition, known as the Journey of Algiers, ended in a disaster as a storm scattered the fleet and the army had to be reembarked having suffered heavy losses. A truce between Charles V and Suleiman the Magnificent was signed in 1543. Castelnuovo remained in Ottoman hands for almost 150 years. It was recovered in 1687, during the Morean War, by the Venetian Captain-General at sea Girolamo Cornaro, who in alliance with Montenegrins under Vuceta Bogdanovic, won a great victory over the Turks near the town and put the fortress under Venetian rule.