Astronomy
1850-1860
1797
King George III
1766
1599
Time Measurement
1909
1739
Telecommunications
1900-1920
Clockmakers
1790-1794
1813-1822
1738
1789-1795
1830-1832
1775-1799
1910-1920
1889-1894
1702-1740
1851-1880
1792-1847
1791-1816
1770-1780
1776-1785
1851-1857
1893
1817-1818
1824
1987
1731-1747
1838-1840
1847
1860
Navigation
1886
1867
1860-1870
1811
1800-1850
1890-1920
1920-1940
1809
1800-1825
1841-1883
1716