The 1956 Development Plan assigned greater Sao Paulo as the most suitable place for Brazil's first car assembly facility, developed by Volkswagen. This would also be the first Volkswagen’s plant away from Germany. After one year, the Volkswagen plant in São Bernardo do Campo, close to São Paulo, was finished and it began the production of the Kombi model.
The Mississippi River, located at number 3, represents the subject of Article 8 in the Treaty of Paris. This treaty ended the successful American Revolution. It also established the borders following the revolution.