In 1444 Dinis Dias went off the mouth of the Senegal River to reach the westernmost point of Africa he calls "Cabo Verde", Cape Vert, because of the lush vegetation seen there. He also reached the island of Gorée, referred to by its inhabitants as "Berzeguiche", but which he called "Ilha de Palma", the island of Palms. The Portuguese did not settle there permanently, but used the site for landing and engaged in commerce in the region. They built a chapel there in 1481. Portuguese trading posts were installed in Tanguegueth in Cay, a town they renamed "Fresco Rio" (the future Rufisque) because of the freshness of its sources in the Baol Sali (later the seaside town of Saly) which takes the name of "Portudal", or to Joal in the Kingdom of Sine.