On this day: July 26

Published On: Jul 25 2012 05:47:01 PM CDT   Updated On: Jul 26 2016 01:00:00 AM CDT

The Inca civilization suffers a blow, the Postal Service, the FBI and the CIA are born, The Babe makes his last public appearance, and the space shuttle returns to space, all on this day.

OTD July 26 - Explorer 4
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U.S. Army

1958: The Explorer 4 satellite is launched. Although the satellite was designed to study the Van Allen radiation belts and the effects of nuclear explosions upon these belts, it was ultimately unsuccessful and ceased sending transmissions less than three months after launch.

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