Phillip's Economic Computer
1949
1949
1949
1839 (original); circa 1988 (replica)
1949
1950
1950
1938 and 1951
1949
4000-2001 BCE
2000-100 BCE
1950
1950
1949
circa 1950
1949
1952-3
1990-95
1950
1903 (original); 1982 (model)
1949
1955; 1830
1949
1950
circa 1950
1950
1950
1949
circa 1950s
1949
6000-5000BCE
1950
1960-1979
1950
1879 (1956)
1935; 1958
2050-1750 BCE
1950
1888; 1984
1990-96
1976; 1776
1949
1962-05
circa 1950s
1950
1950
before 1949
8500-2000 BCE
2000-1001 BCE
circa 1950
1949