President of Venezuela and 1819. For this period in time, historians refer to the Republic of Venezuela as the Second Republic of Venezuela (1813–1814) and the Third Republic of Venezuela (1817–1819) as Simon Bolivar twice reestablished the republic. The Congress of Angostura appointed Simón Bolívar "Supreme Commander of the Republic of Venezuela" (Jefe Supremo de la República de Venezuela) from 1819 until 1830. In 1830, José Antonio Páez declared Venezuela independent from Gran Colombia and became president, taking office on January 13, 1830. Although he was not the first president of Venezuela (having in mind Cristóbal Mendoza in 1811), he was the first
History of South America the continent of North America via the Panama Block that closed the marine Bolivar Trough, leading to the Great American Interchange, the interchange of biota from both continents. The first species discovered to have made the northward migration was "Pliometanastes", a fossil ground sloth species, roughly the size of a modern black bear. Several migrations to the Southern Hemisphere were undertaken by tougher, North American mammal carnivores; fewer species migrated in the opposite direction from south to north. The result of the intrusion of North American fauna was that hundreds of South American species became extinct in a relatively short