The conquering of the world — 19th century

More than two centuries elapsed between the introduction of the first mechanical calculator (Schickard's Rechenuhr of 1623) and the first large-scale and low-cost production machine (Thomas de Colmar's Arithmometer, produced in series from 1850s). The reasons for such a delay (by the way, much longer than that of other industrial superstars as steam and combustion engines, telegraph, telephone, etc.), can be credited to several technical, social, and economic factors, most important of them undoubtedly was the lack of need or, as we would say today, of receptive markets until the second half of the 19th century. But then it was a matter of 10-20 years the manufacturing of calculating machines to evolve to a full-fledged industry...

Abraham Jakub Stern (1812) Thomas de Colmar (1820)
James White (1822) Luigi Torchi (1834)
Thomas Fowler (1840) David (Didier) Roth (1844)
Jean-Baptiste Schwilgué (1844) Izrael Abraham Staffel (1845)
Chaim Zelig Slonimski (1845) Jan Józef Baranowski (1846)
Heinrich Kummer (1846) Maurel and Jayet (1849)
Du Bois D. Parmelee (1850) Victor Schilt (1851)
Orlando Lane Castle (1857) Thomas Hill (1857)
Tito Gonnella (1857) Niccola Guinigi (1858)
John Campbell (1859) Caroline Winter (1859)
Joseph Bell Alexander (1864) Edmund Barbour (1872)
Frank Baldwin (1873) Axel Jakob Petersson (1873)
Willgodt Odhner (1874) George Grant (1876)
Ramón Verea (1876) Pafnuty Chebyshev (1876)
Henry Pottin (1877) Arthur Burkhardt (1878)
Tate-Layton brothers (1883) Joseph Edmondson (1883)
Charles Pidgin (1883) Dorr E. Felt (1885)
Michael Bouchet (1885) Eduard Selling (1886)
William Seward Burroughs (1885) Albert Ludlum (1888)
Otto Büttner (1888) León Bollée (1888)
Otto Steiger (1892) Wilhelm Küttner (1894)
Saxonia (1895) Joseph Turck (1899)
Imagination is more important than knowledge. Knowledge is limited.
Imagination encircles the world.
Albert Einstein