50 years ago — Jack "Flip" Sadler of Imperial won the 20-lap main event last night before an estimated 3,000 fans in the first running of the micro-midgets at Brawley. Sadler grabbed the lead on the first lap of the main event and finished a good six lengths ahead of Ed Erickson of El Centro.
40 years ago — An earthquake shook the Imperial Valley about 30 minutes after noon today. No damage was reported. The quake apparently centered south of the U.S.-Mexican border, according to officials in Pasadena. It had a magnitude of 5.
30 years ago — Fewer people married in Imperial County during the past fiscal year than 10 years ago. Fewer babies were born. More people died. The above facts were revealed in the biennial report of county Recorder John Kennerson. Despite a 10-year drop in paperwork at the Recorder's Office, revenues climbed from $46,082 in 1960-61 to $84,334 in 1970-71.