
Babbage's Analytical Engine, 1834-1871. (Trial model)
1871
1871
1830 (original); 1967 (model)
1870
1872
1872
1872
1872 (original); 1909 (model)
1870
1955; 1830
1934
1893-4
2000-100 BCE
1870s
1873
1872
1874
1873
1705-1737
1934
1872
1839 (original); circa 1988 (replica)
1870
1870
1870-1877
1870
1874
1930 (replica); 1834 (original)
1888
1873
4000-2001 BCE
1873
1668; 1924
circa 1870
1990-95
1610; 1923
circa 1871
1642-1649 (original); 1883 (model)
1925; 1862
1936
1900-1933 (model); 1869 (original)
circa 1870
1834-1836
1873
1872
circa 3000 BCE
1871
1870
1870
100 BCE-300 CE; 1890-1920
1872