The cause of Hundred years’ War happened from 1337 to 1453 between England and France over succession to the French throne.But the major cause of The Hundred Years' War was the economic interest - the revenues to be gotten from this rich territory. Wool was England's largest export product and the source of its wealth. English pastures produced fleeces that were the envy of Europe which Flanders depended on for its wool and linen market.It lasted 116 years and saw manymajor battles. Some impactsEffects on England and France Areas became depleted, populations fled or were massacred, the economy was damaged and disrupted, and ever greater expenditure was sucked into the army, raising taxes. Historian Guy Blois called the effects of the 1430s and 1440s a 'Hiroshima in Normandy. The development technology such as, weapons, armour, fortifications, and strategies of warfare developed during the war, and armies became more and more professional. The war, boosted by stirring medieval literature, poems and popular songs, fosters a greater feeling of nationalism. It also is the creation of national heroes, notably Henry V in England and Joan of Arc in France.