
Register pyrometer to John Frederic Daniell's 1830 design
1830
1830
2300-500 BCE
1950-80
12/11/75
1830
1840-1825
1830
3000-1500
1880-1820
circa 2000 BCE
1997-8
1831
1828-1831
1846-08
1831
1831
1830
1832-186-
1830
1828
1830
1829
1830
1830-1831
1830-1831
1830-1831
1830-1831
1830-1831
1830-1831
1830-1831
1829
1830
1830
1829
1830
1830
1830
1830
1831
1829
1831
1831
1831
1831
1831
1831
1831
1830
1831
1828