Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Irineu Evangelista de Sousa, the Viscount of Mauá was a Brazilian entrepreneur, industrialist, banker and politician. He received the titles of baron and visconde com grandeza of Mauá. He was the patron of the Ministry of Transport and a pioneer in several areas of the economy of Brazil. One of his greatest achievements was to start the construction of the Mauá Railroad, the first railroad in Brazil.