Vive La Guyana

The first attempt to a French settlement in the Guyanas in 1604 was successful, by making an agreement with the indigenous populations in the territory. The village of St. Laurent was founded. Cayenne is settled earlier, in 1609.

The Dutch starts to explore the OTL Suriname in 1615. After the Dutch War (1672-78), the Netherlands ceded their colonies (Essequibo, Demerara and Berbice) to France.

During the Napoleonic Wars, the French Guyana gained independence and merged with Haiti and took other French possessions in the Antilles (Saint-Martin, Saint Barthélemy, Martinique and Guadeloupe), and formed a republic in Caribe. The Treaty of Vienna recognized the republic, called "The Union of Caribbean-Guyanas", later renamed to "Republic of the Guyanas". The Treaty ceded all the Lesser Antilles to the Guyanas.

Guyana strongly supported the Decolonization of Americas. During the 19th century, Guyana and Colombia were strong rivals in South America, leading to great wars.