Panama, is the southernmost country of Central America. Situated on the isthmus connecting North and South America, it is bordered by Costa Rica to the northwest, Colombia to the southeast, the Caribbean Sea to the north and the Pacific Ocean to the south. The capital is Panama City. Explored and settled by the Spanish in the 16th century, Panama broke with Spain in 1821 and joined a union of Nueva Granada, Ecuador, and Venezuela – named the Republic of Gran Colombia. When the latter dissolved in 1830, Panama and Nueva Granada stayed joined. Nueva Granada later became the Republic of Colombia.
 
With the backing of the United States, Panama seceded from Colombia in 1903, allowing the Panama Canal to be built by the U.S. Army Corps of Engineers between 1904 and 1914. In 1977, an agreement was signed for the complete transfer of the Canal from the United States to Panama by the end of the century.
 
Revenue from canal tolls represent today a significant portion of Panama's GDP. Panama has the third- or fourth-largest economy in Central America and[6] it is also the fastest growing economy and the largest per capita consumer in Central America. In 2010 Panama ranked 4th among Latin American countries in terms of the Human Development Index, and 54th in the world in 2010. As of 2010, Panama is the second most competitive economy in Latin America as well according to the Global Competitiveness Index from the World Economic Forum (WEF). Panama has the largest rainforest in the Western Hemisphere outside the Amazon Basin and its jungle is home to an abundance of tropical plants, animals and birds – some of them to be found nowhere else in the world.

Etymology
There are several theories about the origin of the name "Panama". Some believe that the country was named after a commonly found species of trees. Others believe that the first settlers arrived in Panama in August, when butterflies abound, and that the name means "many butterflies" in an indigenous language.
 
The best known version is that a fishing village and its nearby beach bore the name "Panamá", which meant "an abundance of fish". Captain Antonio Tello de Guzmán, while exploring the Pacific side in 1515, stopped in the small indigenous fishing town. This was communicated to the Crown and in 1517 Don Gaspar De Espinosa, a Spanish lieutenant, decided to settle a post there. In 1519, Pedrarias Dávila decided to establish the Empire's Pacific city in this site. The new settlement replaced Santa María La Antigua del Darién, which had lost its function within the Crown's global plan after the beginning of the Spanish exploitation of the riches in the Pacific.
 
Blending all of the above together, Panamanians believe in general that the word Panama means "abundance of fish, trees and butterflies". This is the official definition given in social studies textbooks approved by the Ministry of Education in Panama. However, others believe the word Panama comes from the Kuna word "bannaba" which means "distant" or "far away".

The earliest known inhabitants of Panama were the Cuevas and the Coclé tribes, but they were wiped out by disease and fighting when the Spaniards arrived in the 16th century.

In the first eighty years following independence from Spain, Panama was a department of Colombia, since voluntarily becoming part of it at the end of 1821. The people of the isthmus made several attempts to secede and came close to success in 1831, and again during the Thousand Days War of 1899–1902. When the Senate of Colombia rejected the Hay-Herran Treaty, the United States decided to support the Panamanian independence movement. In November 1903, Panama proclaimed its independence and concluded the Hay/Bunau-Varilla Treaty with the United States. The treaty granted rights to the United States "as if it were sovereign" in a zone roughly 10 miles (16 km) wide and 50 miles (80 km) long. In that zone, the U.S. would build a canal, then administer, fortify, and defend it "in perpetuity." In 1914, the United States completed the existing 83 km (52 mi) canal. The early 1960s saw the beginning of sustained pressure in Panama for the renegotiation of this treaty.
 
From 1903 until 1968, Panama was a constitutional democracy dominated by a commercially oriented oligarchy. During the 1950s, the Panamanian military began to challenge the oligarchy's political hegemony.
 
Amidst negotiations for the Robles–Johnson treaty, Panama held elections in 1967. The candidates were Dr. Arnulfo Arias Madrid, Antonio González Revilla, and Engineer David Samudio, who had the government's support. Samudio was the candidate of Alianza del Pueblo ("People's Alliance"), Arias Madrid was the candidate of Unión Nacional ("National Union"), and González Revilla was the candidate of Democracia Cristiana ("Christian Democrats") (see Pizzurno Gelós and Araúz, Estudios sobre el Panamá republicano 508). Arias Madrid was declared the winner of elections that were marked by violence and accusations of fraud against Alianza del Pueblo. On October 1, 1968, Arias Madrid took office as president of Panama, promising to lead a government of "national union" that would end the reigning corruption and pave the way for a new Panama. A week and a half later, on October 11, 1968, the National Guard (Guardia Nacional) ousted Arias and initiated the downward spiral that would culminate with the United States' invasion in 1989. Arias, who had promised to respect the hierarchy of the National Guard, broke the pact and started a large restructuring of the Guard. To preserve the Guard's interests, Lieutenant Colonel Omar Torrijos Herrera and Major Boris Martínez commanded the first coup of a military force against a civilian government in Panamanian republican history (see Pizzurno Gelós and Araúz, Estudios sobre el Panamá republicano 523)

Currency
The Panamanian currency is officially the balboa, fixed at parity with the United States dollar since independence in 1903. In practice, however, the country is dollarized; Panama has its own coinage but uses U.S. dollars for all its paper currency. According to the Economic Commission for Latin American and the Caribbean, Panama's inflation as measured by weight CPI was 2.0% in 2006. Panama has traditionally experienced low inflation, as it shares currencies with the U.S.
 
The balboa replaced the Colombian peso in 1904 following the country's independence. The balboa has been tied to the United States dollar (which is legal tender in Panama) at an exchange rate of 1:1 since its introduction and has always circulated alongside dollars.
 
Panamanian banknotes, denominated in balboas, were printed in 1941 by President Arnulfo Arias. They were recalled several days later, giving them the name "The Seven Day Dollar." The notes were burned after the seven days but occasionally balboa notes can be found with collectors. These were the only banknotes issued by Panama and U.S. notes have circulated both before and since.