steam, factories, and cities
the setting, ~1760
1700–1760
1733–1800
1698–1800
1709–1860
1780–1850
1761–1840
1804–1850
1830–1851
1830–1875
1811–1834
1832–1848
1802–1875
1798–1867
1799–1900
1790–1890
1856–1914
1870–1914
1850–1900
the legacy