On this day: October 1

POSTED: 8:26 PM Sep 30 2012   UPDATED: 12:00 AM Oct 01 2014

Thomas Edison opens the world's first electric lamp factory, Yosemite becomes a national park, soccer great Pele says goodbye, and Walt Disney World opens, all on this day.

OTD October 1 - CAT scan
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Philipcosson/Wikimedia Commons

1971: The first brain-scan using X-ray computed tomography (CT or CAT scan) is performed at Atkinson Morley Hospital in Wimbledon, London.

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