History of the English penny (1154–1485) the continental price of silver, thus putting an end to the illegal export of English coinage. The heavy coinage was minted at London and York, inscribed – "Henry by the Grace of God King of England", while the light coinage was minted at London, York, and Durham, inscribed . Henry V (1413–1422) continued his father's light coinage, with similar inscriptions on the coins produced at London, Durham, and York. Henry VI (1422–1461, 1470–1471) came to the throne as an infant. He favoured making peace with France, but his heir, Richard, Duke of York, a descendant of the second son of
IEEE 1471 Standards Board approved the specification as IEEE Std 1471-2000. In 2006, ISO/IEC Joint Technical Committee 1 (JTC1), Information technology/Subcommittee SC 7, Software and systems engineering, adopted the specification as ISO/IEC 42010, under a special "fast-track procedure", in parallel with its approval by national bodies of ISO and IEC. A coordinated revision of this standard by ISO/IEC JTC1/SC7/WG42 and IEEE CS commenced in 2006, following the successful ISO/IEC fast-track ballot and in line with the IEEE standard 5-year review of the standard. In November 2011, IEEE 1471-2000 and ISO/IEC 42010:2007 was superseded by ISO/IEC/IEEE 42010:2011, "Systems and software engineering — Architecture