50 years ago — Coastal fog and mechanical trouble forced two nonscheduled airplanes to land at the El Centro Naval Auxiliary Air Station. One plane's destination was New York via El Paso, Texas, and the other was headed to San Diego. A Mid-America Airlines C46, bearing 51 passengers, landed when the pilot noticed a break in the pressure hydraulic reservoir.
40 years ago — The Board of Supervisors on Monday voted to ask the state director of recreation to make a study on a proposed Niland Recreation District.
30 years ago — Valley efforts to seek industry were described as fragmented by provincialism by economic development experts. Donald Barnett, executive director for the King County Economic Development Corp., urged the community to concentrate on creating industrial parks.
20 years ago — A Mexicali man was detained early today in Calexico after he allegedly made a telephone call threatening President Reagan. Frank Ranzi, Los Angeles Secret Service intelligence squad leader, said a man called Duty Agent John Bazarko in the Los Angeles Secret Service office at 2:48 p.m. today and made threats against the president. Renzi and Bazarko kept the man on the telephone while the call was traced.