>>50 years ago — An emergency mobile blood bank unit will be in El Centro to get blood for polio patients. The unit from Phoenix will replace blood used by polio victims in this area and to stock a reserve of blood for future use in polio cases.
>>40 years ago — Asking for a 25-cent-an-hour raise, carpenters in 11 Southern California counties have gone on strike, creating problems at Imperial Valley College with its buildings under construction. The $2.5 million facilities are slated for use by fall on a rush schedule.
>>30 years ago — A decision on a request for a conditional-use permit to allow a camping area and a commercial and public catfish farm a mile north of Ben Hulse Highway on the east side of the Highline Canal was continued for a month by the county Planning Commission.
>>20 years ago — The Imperial Irrigation District Board of Directors on Tuesday moved a step closer to placing a $94 million bond issue on the November ballot when it requested the state treasurer authorize the issue. The bonds would be used to buy a 22.47 percent share of San Diego Gas & Electric Co.'s 500-kilovolt transmission line and equipment to connect it with the IID system. It would also finance the hydroelectric plants at Drop One and the East Highline Turnout.