Thomas Edison tested an electric incandescent light bulb in Menlo Park, N.J., that burned for 13 1/2 hours, marking the beginning of a new era of electric lighting.
[Source: Church News: Historical Chronology of The Church of Jesus Christ of Latter-day Saints, http://www.ldschurchnewsarchive.com/articles/58765/Historical-chronology-of-The-Church-of-Jesus-Christ-of-Latter-day-Saints.html]
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