It has been said that George Barlow, the companion of Sebastian Cabot, was an Irishman. Cabot was the first Britisher to sail up the Rio de la Plata, and gave it its name just thirty-five years after the discovery of America. Barlow was in the service of the king of Spain, and in that country met Cabot, who had been appointed Pilot Major to his Majesty in the year 1518. In 1577 we read of the famous Admiral Drake's expedition to the River Plate, which he reached on April 14, 1578. Evidently it was a successful one in the opinion of Queen Elizabeth, for on Drake's return to Plymouth, September 26, 1580, she came aboard his ship and knighted him. There seem to have been three Irishmen on this expedition, Fenton, Merrick, and Ward. Fenton, who was in command of two vessels, was attacked by a Spanish squadron between Brazil and the River Plate, and the battle continued by moonlight until one of the Spaniards was sunk. The Spanish historian adds that Fenton might have sunk another of the enemy's ships, but refrained because there were several women on board. Lozana in his _History_ mentions a revolution in Paraguay in 1555, which was headed by an Irishman named Nicholas Colman. This revolution was quickly suppressed by the Spanish viceroy, Yrala, but Colman led a second revolution in 1570, when Captain Rigueline was governor of Guayra. The mutineers named Colman for their chief, put their treasures into canoes, and floated down the Parana until their boats were capsized by some rapids, probably the falls of Apipe in Misiones. The viceroy, on hearing of the revolt, sent troops to bring back the fugitives, and the latter were treated with unusual clemency. Lozana describes Colman as a daring, turbulent buccaneer. For fifteen years he seems to have played an important part in Guayra; his subsequent fate is unknown. In 1626 an expedition commanded by James Purcell, an Irishman, established itself on the island of Tocujos, in the mouth of the Amazon. Captain Charles O'Hara was sent by Governor Arana from Montevideo in March, 1761, to destroy the old landmarks of Rio Negro and Ching between the dominions of Portugal and Spain. The officer next under him was Lieutenant Charles Murphy, afterwards governor of Paraguay. This expedition suffered great hardships.