This power began to be vested on one man when the figure of Director was created in the 1813 National Assembly. The different Directors became Head of State after Independence was declared in 1816, but they were not yet the head of a [[presidential system]].
In 1819 the Congress assembled that had declared Independence, composed a Constitution. It established an executive figure, named Supreme Director, which was vested with presidential powers. This constitution was of unitarian style, and gave the Supreme Director the additional power of appointing the [[Governor]]s of the [[province]]s. This constitution, however, because of political circumstances, never came into force, and central power was dissolved, leaving the country as a [[federation]] of provinces.