The History of Essos 6/11: The Foundation of Braavos
The free city of Braavos was founded by escaped slaves, fleeing the grasp of the Valyrian Freehold. The slaves rebelled on their way from Valyria to a new colony in Sothoryos, took control of the ships, and turned north instead of south, travelling as far as they could. According to the histories of Braavos, it was a group of slave women from the lands of Jogos Nhai, the moonsingers, who predicted where shelter could be found. Thus, the slaves travelled to the distant lagoon, hidden away from sight of the dragonlords by the wall of hills covered with pine trees and the fog covering the lagoon. The founders of Braavos had risked their lives for freedom, and swore a vow that no one in their city would ever be a slave, thrall, or bondsman. This vow became the First Law of Braavos, and is engraved on the arch spanning the Long Canal. The existence of the city was a secret for a century.
This image is part of a huge map of the geography, history and gods of Essos, which can be found at www.klaradox.de.