The intelligence which the ship of Garciam brought to Portugal, in the year 1528, that the Spaniards had formed an establishment upon the river Plate, induced King John III. who wished that river to become the divisionary line, to despatch an armament, in the year 1531, under the command of Martim Affonso de Souza, with orders to erect fortifications and to distribute lands to those who wished to establish themselves in the country. The fleet, after having made and recognised Cape St. Augustin, navigated along the coast and entered the bay of All Saints, where they discovered and captured two French vessels. Joam de Souza, captain of one of the ships composing the armament, was sent to announce to the King this circumstance. Martim Affonso continued his voyage to the south, and after refreshing at Porto Seguro, he found out and entered the bay of St. Luzia, to which he gave the name of Rio de Janeiro, in consequence of discovering it on the 1st of January, 1532. Prosecuting the voyage, and always keeping as near land as possible, he gave to the most remarkable and important places, the names of the saints on whose days he discovered them. Having passed the island of St. Sebastian, on the 20th of the same month, he proceeded to that part of the port where it is supposed the factory was situated, and of which no doubt he was previously informed. It appears, however, after various operations upon the northern bar of the port to establish there the colonists, who wished to remain in the land, he changed his plan and removed them to the southern bar. He spent eleven months in the execution of various measures upon the coast, and it was the month of December before he arrived at the river Plate; for the sun, say the Portuguese, was on the tropical line of Capricorn. (_O sol chegou ao tropico de Capricornio._) Not meeting with any Spanish settlements upon any part of the coast, he returned to the colony at the southern bar of the bay of Santos, augmenting it considerably, by giving lands to all individuals who determined to settle there, in pursuance of the orders he had received. He sent eighty men into the interior, for the purpose of discovering or making a conquest of the mines of Cannanea. The entire party were murdered by the _Carijos_ Indians.