OLD SITES OF MISSION SANTA CLARA DE ASIS E - View this location on map - The first mission in this valley, Mission Santa Clara de Thamien, was established at this site by Franciscan Padres Tomas de la Peqa and Joseph Antonio Marguia January 17, 1777. Here, at the Indian village of So-co-is-u-ka, they erected a cross and shelter for worship to bring Christianity to the Costanoan Indians. Central Expressway and De la Cruz Blvd, Santa Clara, California Historical

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