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1953 - California introduces sales tax (for education).

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1957 - First commercial building heated by Sun (Albuquerque, New Mexico).

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1958 - US first class postage up to 4 cents (had been 3 cents for 26 years).

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1961 - Whitney Young Jr named executive director of American National Urban League.

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1966 - Charles Whitman climbs University of Texas tower and shoots 12 dead.

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1969 - 110,000 attend Atlantic City Pop Festival in New Jersey.

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1972 - First article appears exposing Watergate scandal (Bernstein-Woodward).

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1975 - In Oroville, California, a magnitude 5.8 earthquake occurs.

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1981 - MTV music video TV begins broadcasting in the United States and airs its first video, Video Killed The Radio Star by the Buggles.

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1983 - America West Airlines begins operations out of Phoenix, Arizona and Las Vegas, Nevada.

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