It is the Tea Act that was issued to raise money for the British east India company
Through much of the nineteenth century, Great Britain avoided the kind of social upheaval that intermittently plagued the Continent between 1815 and 1870. Supporters of Britain claimed that this success derived from a tradition of vibrant parliamentary democracy. While this claim holds some truth, the Great Reform Bill of 1832, the landmark legislation that began extending the franchise to more Englishmen, still left the vote to only twenty percent of the male population. A second reform bill passed in 1867 vertically expanded voting rights, but power remained in the hands of a minority--property-owning elites with a common background, a common education, and an essentially common outlook on domestic and foreign policy. The pace of reform in England outdistanced that of the rest of Europe, but for all that remained slow. Though the Liberals and Conservatives did advance different philosophy on the economy and government in its most basic sense, the common brotherhood on all representatives in parliament assured a relatively stable policy-making history.
Sorry it's so long but that's the answer toy your question...Hope this helps:)
The increase in the trade of silver during the period between 1550 and 1800 is due to the fact that silver was started to be used as a standard currency for trade purposes. Even though it was not considered as "legal tender", as it would later be used for this purpose with the introduction "Bimetallism" in the 19th century, it was widely adopted as a tool for trade among the civilizations that existed at the time.
