Today in 1769 Franciscan missionary Father Junipero Serra founded the first Catholic mission in Alta California, which he named San Diego de Alcala. From that point I don't know what happened to the Catholics, the Mexicans, or to San Diego.
In 1935, in Oklahoma City, Park-O-Meter No. 1 was installed at the corner of First Street and Robinson Avenue. Thankfully, much to the benefit of a growing automobile culture in America and worldwide, the freedom-restricting concept of paid parking did not catch on . . . much. And in 1945, in the desert near Alamogordo NM, the first atom bomb was successfully detonated, yielding the equivalent of 15-20,000 tons of TNT. This quantum leap in military capability has since resulted in a stable world order of peace and tranquility. As Robert J. Oppenheimer, one of the leading architects of the project, remarked at the time, "Now I am become Death, the destroyer of worlds."