In the history of Portugal, the Regeneration (Portuguese - Regeneração) is the name given to the period of the Portuguese Constitutional Monarchy following the military insurrection of 1 May 1851 that caused to the fall of Costa Cabral and of the Septembrist government. Despite the ministry that resulted from the strike, presided over by marshal Saldanha, the main figure of the Regeneration was Fontes Pereira de Melo. Although it clearly cannot be delimited in the time, the period of the Regeneration lasted for around 17 years, ending with the Janeirinha revolt in 1868, which brought the Reformist Party to power. The Regeneration was characterized by work towards economic development and the modernization of Portugal, and the associated heavy fiscal measures.