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Juan Rodríguez Cabrillo of Portugal arrives at what is now San Diego, California. He is the first European in California.

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Juan Rodríguez Cabrillo
16th-century Iberian maritime explorer of North America
Juan Rodríguez Cabrillo was a Portuguese maritime explorer best known for investigations of the west coast of North America, undertaken on behalf of the Spanish Empire. He was the first European to explore present-day Alta California, navigating along the coast of California in…Source: Wikipedia (CC BY-SA)
September 28
Day of the year
September 28 is the 271st day of the year in the Gregorian calendar; 94 days remain until the end of the year.Source: Wikipedia (CC BY-SA)