Annus mirabilis

Annus mirabilis (pl. anni mirabiles) is a Latin phrase that means "marvelous year", "wonderful year", "miraculous year", "year of wonder" or "amazing year". This term has been used to refer to several years during which events of major importance are remembered, notably Isaac Newton's discoveries in 1666. Hundred Years' War, 1345–1347 Eight years after the start of the Hundred Years' War large-scale fighting had died down. Edward III of England decided to renew the war more vigorously in 1345. He despatched a small force to Gascony in south-west France under Henry, Earl of Derby and personally led the main English army to northern France. Edward delayed the disembarkation of his army and his fleet was scattered by a storm, rendering this offensive ineffective. Derby was spectacularly successful, winning victories at Bergerac and Auberoche. The following spring a large French army, led by the heir to the French throne, John, Duke of Normandy, counter-attacked Derby's forces. Edward responded by landing an army of 10,000 men in northern Normandy. The English devastated much of Normandy and stormed and sacked Caen, slaughtering the population. They cut a swath along the left bank of the Seine to within of Paris. The English army then turned north and inflicted a heavy defeat on a French army led by their king, Philip VI, at the Battle of Crécy on 26 August 1346. They promptly exploited this by laying siege to Calais. The period from Derby's victory outside Bergerac in late August 1345 to the start of the siege of Calais on 4 September 1346 became known as Edward III's annus mirabilis. The Catholic Monarchs (Isabella I of Castile and Ferdinand II of Aragon) built in 1492 the most powerful monarchy in the Western World by the conquest of Granada, the final step of the Reconquista, on January 2, and, though this wonder began to manifest only upon the return of Columbus the next year, the discovery of the Americas on October 12.