151 years agoThe Age of Steam
1876-03-10
The Telephone
Bell transmitted speech by telephone for the first time.
Art style · 1870s wood engraving
World population
1.45Bpeople
1/6 of today
Primary energy power
1.1×10¹²W
1/18 of today
London → New York message
30 seconds
1,007 times slower than today
Every timeline entry cites its source. Metrics interpolate logarithmically between sourced data points. Forecasts include institutional and community views, and attributed site scenarios; years are not guaranteed realization dates. Illustrations are AI-generated in each era's style.
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