(Spanish "gold peso"), except no gold coins actually were used. "The nuevo peso argentino (equal to 10,000 australs) was introduced in January 1992, at an exchange rate of 1 peso equaling U.S.$1. In 1997 1 Argentinian peso was still trading for U.S.$1."(Encarta Online) The Central Bank works as the national bank and is the only one that has the right to issue money. "The entire Argentine railroad system was owned and operated by the government from 1948 until 1992, when portions of the rail system were privatized. By 1994, most of the state-owned rail network had been privatized."(Norden, Deborah L.)Aerolneas Argentinas was the national airline until it was privatized in 1990. A railroad tunnel through the Andes has provided facilities for motor vehicles since it was built in 1940. In 1996 there were 127 cars for every 1,000 people in Argentina. (Encarta Online)According to the constitution of 1853, Argentina is a federal republic with a president, who is helped by a council of ministers. Legislative powers are vested in a national congress consisting of a Senate and a Chamber of Deputies. "A new constitution was passed in 1949, only to be rescinded in 1956. All constitutional provisions were suspended in 1966 following a military takeover. After another military coup in 1976, the constitution of 1853 was again suspended, but it was reinstated when Argentina returned to civilian rule in 1983. The constitution of 1853, in the preamble and in much of the text, reflects the ideas and aims of the Constitution of the United States. Several parts of Argentina's constitution were revised in 1994."(Norden, Deborah L.) The government like the U.S.. All citizens 18 years old are allowed to vote."In February 1516, the Spanish navigator Juan Daz de Sols, then engaged in search of a southwest passage to the East Indies."(Encarta Online) Sebastian Cabot,an Italian navigator in the service of Spain, visited the estuary in 1526. In search of f...