>> 50 years ago — The 1952, Imperial Valley high school basketball championship will be placed on the line when league-leading Calexico invades Brawley for the deciding tilt of the campaign. The Bulldogs have rung up eight straight victories while Brawley is in second spot with a 7-1 record.
>> 40 years ago — Residents of the Seeley area pay the highest combined tax rate ($14.88) while Mount Signal residents pay the lowest ($6.89), a distribution of city, county and irrigation district taxes show. Of the Valley's seven incorporated cities, Calexico pays the highest ($12.29) and Westmorland the lowest ($9.49).
>> 30 years ago — Even before the completion of its 75-megawatt power plant in the steam fields of Cerro Prieto, Mexico's Federal Commission of Electricity has begun a second stage of steam well drilling in the area.
>> 20 years ago — The Mexican government announced today it has suspended trading dollars and will float the peso in the world market Friday in an effort to bring Mexico's balance of payments in order. The announcement burst like a bombshell among Valley merchants, especially those in Calexico who deal heavily with the peso.