Canning novelty. Early methods of manufacture employed poisonous lead solder for sealing the cans. Studies in the 1980s attributed the lead from the cans as a factor in the disastrous outcome of the 1845 Franklin expedition to chart and navigate the Northwest Passage. Later studies found this to be false. Increasing mechanization of the canning process, coupled with a huge increase in urban populations across Europe, resulted in a rising demand for canned food. A number of inventions and improvements followed, and by the 1860s smaller machine-made steel cans were possible, and the time to cook food in sealed cans had
Val de Cans International Airport returned to the Ministry of Aeronautics in 1945. Panair do Brasil, Pan American, and NAB – Navegação Aérea Brasileira began their activities at Val de Cans building their stations and providing services to passengers. In 1958, the Ministry of Aeronautics began building the first passenger terminal for general airline use, which was opened on 24 January 1959. It was then administered by the Department of Civil Aviation. In 1974 its administration was transferred to Infraero. The original passenger terminal complex underwent major renovation and expansion, which was completed in 2001: in 1999 a brand-new passenger terminal located at the side