On the 1st of July, 1769-a day forever memorable in the annals of California-a small party of men, worn out by the fatigues and hardships of their long and perilous journey from San Fernandez de Villicatà, came in sight of the beautiful Bay of San Diego. They formed the last division of a tripartite expedition which had for its object the political and spiritual conquest of the great Northwest coast of the Pacific; and among their number were Gaspar de Portolà, the colonial governor and military commander of the enterprise; and Father Junipero Serra, with whose name and achievements the early history of California is indissolubly bound up. This expedition was the outcome of a determination on the part of Spain to occupy and settle the upper of its California provinces, or Alta California, as it was then called, and thus effectively prevent the more than possible encroachments of the Russians and the English. Fully alive to the necessity of immediate and decisive action, Carlos III.