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Dial Up For The Latest Election News
History

Dial Up For The Latest Election News

Harry K. dials up the Evening Telegraph Information Bureau, a pilot communications service in 1905 that provided Keystone Telephone customers with news and information at a moment’s notice

From A Corner of Center City, The Source Of Light
History

From A Corner of Center City, The Source Of Light

John Vidumsky discovers the people and the places behind the birth of electric light in America–at the heart of it the inimitable John Wanamaker and a brilliant inventor named Charles Brush whose power station, the first in Philadelphia, is still in use today

The Transit Of Venus Starts Here
History

The Transit Of Venus Starts Here

In honor of next Tuesday’s transit of Venus across the sun, we turn to Harry K’s Philadelphia Encyclopedia for some insight on David Rittenhouse, astronomer and polymath inventor and first American scientist to observe the transit, which he did on June 3, 1769


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