On June 21st，1215 - The Magna Carta.
The British Houses of Parliament in London were designed by Sir Charles Barry and constructed between 1840 and 1860. Britain's Parliament has served as a model for many nations, especially former members of the British Empire. However, there are many distinctions. As Parliamentary history in England was largely evolutionary, reserving many feudal features of Sovereign rule. Popular belief holds that the Parliament began with the signing of the Magna Carta in 1215, but the election of representatives evolved gradually thereafter. The Parliament still consists of the House of Lords and the House of Commons, though now a formality, the royal assent is necessary for every bill to become law.