sentences:  The post has existed on a formal basis since the 1826 inaugural of Bernardino Rivadavia, who named lawmaker Salvador María del Carril as the nation's first official "Ministro de Hacienda".The office became among the most powerful in Argentine Government during the generation after 1880, when English Argentine investment, foreign trade, and immigration spurred development.Customs collections (source of over half of public revenues at the time) and the Central Bank were among the responsibilities placed under the Economy Ministry's aegis, and successive ministers' policies were often enacted through presidential decrees.