¶ The rare gas neon was discovered in 1898 (Ramsey & Travers of England). The neon lamp was invented in 1911 (Claude of France). Neon signs, however, did not festoon the streets of the U. S. in any numbers until the late 1929's.
¶ The steam engine was hit upon by Hero of Alexandria (circa 130 B. C.), made practicable (1763-82) by James Watt, appeared on no successful locomotive until 1829 (Stephenson's "Rocket").
¶ Henry Mill of England patented a typewriter in 1714, William Burt of Detroit another in 1829 and a practical...
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