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Hace 4 días · Around 265 AD, the Wei Kingdom mathematician Liu Hui created a polygon-based iterative algorithm and used it with a 3,072-sided polygon to obtain a value of π of 3.1416. [52] [53] Liu later invented a faster method of calculating π and obtained a value of 3.14 with a 96-sided polygon, by taking advantage of the fact that the differences in area of successive polygons form a geometric series ...
Hace 2 días · In June 1647, a troop of cavalry under Cornet George Joyce seized the King from Parliament's imprisonment. With the King now present, Cromwell was eager to find out what conditions the King would acquiesce to if his authority was restored.
- Soldier and statesman
- Sidney Sussex College, Cambridge
- pre-1642 (militia service), 1642–1651 (civil war)
- Robert Cromwell (father), Elizabeth Steward (mother)
Hace 3 días · By the 1640s, an ex-soldier and rival to Li—Zhang Xianzhong (1606–1647)—had created a firm rebel base in Chengdu, Sichuan, with the establishment of the Xi dynasty, while Li's center of power was in Hubei with extended influence over Shaanxi and Henan.
Hace 2 días · In 1647, a French-backed rebellion succeeded in temporarily overthrowing Spanish rule in Naples. The Spanish quickly crushed the insurrection and restored their rule over all of southern Italy, defeating multiple French expeditionary forces sent to back the rebels.
Hace 1 día · The Truce of Ulm (1647) and the Peace of Westphalia (1648) brought an end to the war. France was hit by civil unrest known as The Fronde which in turn evolved into the Franco-Spanish War in 1653. Louis II de Bourbon joined the Spanish army this time, but suffered a severe defeat at Dunkirk (1658) by Henry de la Tour d'Auvergne.
Hace 4 días · Poland. The Kingdom of Bohemia ( Czech: České království ), [a] sometimes referenced in English literature as the Czech Kingdom, [8] [9] [a] was a medieval and early modern monarchy in Central Europe. It was the predecessor of the modern Czech Republic . The Kingdom of Bohemia was an Imperial State in the Holy Roman Empire.
Hace 2 días · Coronation of King Andrew. c. 1015. Son of Vazul and a lady from the Clan Tátony. Anastasia of Kiev. Adelaide, Duchess of Bohemia. Solomon, King of Hungary. David, Prince of Hungary. George ( illegitimate) Before 5 December 1060.
