The name Argentina is derived from the Latin "argentums-silver" and was first used in 1536 on Venetian sailors' maps. The county's official name became the Republic of Argentina in 1860. The flag of Argentina symbolizes a clear blue sky and the sun in the middle symbolizes freedom. Nomadic tribes lived in Argentina before the arrival of the Spanish, these tribes were scattered all over the country. The tribes were traditional hunters, although some settled down and began growing crops such as corn. The Spanish then entered in 1536, first encountering the tribes during their search for gold and silver. After this first meeting, the Spaniards returned to Paraguay. In 1580, the Spanish returned and founded Buenos Aires. In 1776, Buenos Aires was announced as the new capital of Argentina. Although the Spanish controlled the region, their trade restrictions on residents led to a revolt that ended with the declaration of independence in 1816. As Argentina grew, conflict between the capital and the provinces also developed. Those in the capital were known as "Unitarians", while those outside the capital were known as "Federalists". A civil war broke out, which was a bloody and very bad period in the history of Argentina. In 1829, Juan Manuel de Rosas came to power. A federalist who actually applied his own unitarian principles. He centralized control of the nation from Buenos Aires. Although stability has returned to Argentina, the country has paid a heavy price. The country was closed off by a strong army and secret police. In 1852, Rosas was removed from power. The next stage in Argentina's history can be considered the founding of modern Argentina. The new unitarian government implemented a liberal consti...... middle of paper ......y time with or without cause by general assembly or, if appointed by a particular class of shares , by an extraordinary meeting of the assembly concerned. The board of directors must meet at least once every three months, the terms of convening may be set by the internal regulations. The board must also meet at the request of a director, in which case the meeting must be called by the president and held within five days. To meet validly, a quorum of at least the majority of directors is required; a higher quorum can be set in the statutes. Decisions are approved by the favorable vote of a simple majority of directors present at the meeting concerned. In listed companies, the articles of association may allow virtual board meetings. Typically, the board of directors is responsible for managing the company. The legal representation of the company is entrusted to the chairman of the board of directors..