On January 5, 1852, in this adobe at the village of Temecula, a Treaty of Peace and Friendship was entered into between the United States and the San Luis Rey Kahwea and Cocomcahra Indians. The treaty was an important factor in furthering relations between southern California Indians and emigrants. During the Civil War, the adobe was a station on the main military road between Los Angeles and Arizona, and it later became a Butterfield stage stop.