>> 50 years ago — M.J. Dowd, consulting engineer for the Imperial Irrigation District, charged Tuesday the Central Arizona Project is "absurd and unwarranted." Dowd spoke at a hearing of the state joint interim committees on agricultural-livestock and water problems in the County Courthouse.
>> 40 years ago — Richard M. Nixon, former vice president and candidate for governor, will speak briefly and will greet guests at "Nixon Coffee Hour" in the Planters Hotel in Brawley.
>> 30 years ago — An official of Magma Power Co. predicted a 100-megawatt electrical plant, using geothermal steam as a heating agent, will be operating in Imperial County by early 1973.
>> 20 years ago — It took a local scientist 25 years to track down prehistoric animals in the De Anza-Borrego desert and even longer to find out how they got here. George Miller, an Imperial Valley College paleontologist, has been digging up fossils in the desert park since the 1950s. Not until last year were the first fossilized animal tracks found.