50 years ago — The rabies quarantine on dogs in El Centro will remain effective until April 17. Dr. Warren F. Fox, city and county health officer, said today. The length of the initial 90-day quarantine is based on studies revealing vaccinated dogs cannot obtain rabies in this period.
40 years ago — Five days of cold and windy weather dropped attendance at the fair. This year only 43,672 people attended, down from last year's record of 61,533 people. There were 7,093 fair-goers on the final day.
30 years ago — The Census Bureau reports the official 1970 Imperial County population was 74,492 up 3.3 percent from the 1960 figure of 72,105. The official California population was nearly 20 million, up 27 percent from the 1960 population count.
20 years ago — The skeleton of a prehistoric horse has been found in the Anza-Borrego area by an excavation team from Imperial Valley College. Last week it was announced IVC teams had unearthed a mammoth in the same area. A news conference discussing the horse will be conducted Tuesday.