<Li> James G. Fair </Li> <P> This list names the richest American by half decade starting in 1770 . </P> <Table> <Tr> <Th> Year </Th> <Th> Name </Th> <Th> Picture </Th> </Tr> <Tr> <Td> 1770 </Td> <Td> Peter Manigault </Td> <Td> </Td> </Tr> <Tr> <Td> 1775 </Td> <Td> Robert Morris </Td> <Td> </Td> </Tr> <Tr> <Td> 1780 </Td> <Td> William Bingham </Td> <Td> </Td> </Tr> <Tr> <Td> 1785 </Td> <Td> Benjamin Franklin </Td> <Td> </Td> </Tr> <Tr> <Td> 1790 </Td> <Td> John Hancock </Td> <Td> </Td> </Tr> <Tr> <Td> 1795 </Td> <Td> Elias Hasket Derby </Td> <Td> </Td> </Tr> <Tr> <Td> 1800 </Td> <Td> Thomas Willing </Td> <Td> </Td> </Tr> <Tr> <Td> 1805 </Td> <Td> Stephen Girard </Td> <Td> </Td> </Tr> <Tr> <Td> 1810 </Td> </Tr> <Tr> <Td> 1815 </Td> </Tr> <Tr> <Td> 1820 </Td> </Tr> <Tr> <Td> 1825 </Td> </Tr> <Tr> <Td> 1830 </Td> </Tr> <Tr> <Td> 1835 </Td> <Td> Stephen Van Rensselaer </Td> <Td> </Td> </Tr> <Tr> <Td> 1840 </Td> <Td> John Jacob Astor </Td> <Td> </Td> </Tr> <Tr> <Td> 1845 </Td> </Tr> <Tr> <Td> 1850 </Td> <Td> Cornelius Vanderbilt </Td> <Td> </Td> </Tr> <Tr> <Td> 1855 </Td> </Tr> <Tr> <Td> 1860 </Td> </Tr> <Tr> <Td> 1865 </Td> </Tr> <Tr> <Td> 1870 </Td> </Tr> <Tr> <Td> 1875 </Td> </Tr> <Tr> <Td> 1880 </Td> <Td> William Henry Vanderbilt </Td> <Td> </Td> </Tr> <Tr> <Td> 1885 </Td> </Tr> <Tr> <Td> 1890 </Td> <Td> John D. Rockefeller </Td> <Td> </Td> </Tr> <Tr> <Td> 1895 </Td> </Tr> <Tr> <Td> 1900 </Td> <Td> Andrew Carnegie </Td> <Td> </Td> </Tr> <Tr> <Td> 1905 </Td> </Tr> <Tr> <Td> 1910 </Td> <Td> John D. Rockefeller </Td> <Td> </Td> </Tr> <Tr> <Td> 1915 </Td> </Tr> <Tr> <Td> 1920 </Td> <Td> Henry Ford </Td> <Td> </Td> </Tr> <Tr> <Td> 1925 </Td> </Tr> <Tr> <Td> 1930 </Td> <Td> Andrew Mellon </Td> <Td> </Td> </Tr> <Tr> <Td> 1935 </Td> </Tr> <Tr> <Td> 1940 </Td> <Td> Henry Ford </Td> <Td> </Td> </Tr> <Tr> <Td> 1945 </Td> </Tr> <Tr> <Td> 1950 </Td> <Td> H.L. Hunt </Td> <Td> </Td> </Tr> <Tr> <Td> 1955 </Td> <Td> J. Paul Getty </Td> <Td> </Td> </Tr> <Tr> <Td> 1960 </Td> <Td> Howard Hughes </Td> <Td> </Td> </Tr> <Tr> <Td> 1965 </Td> </Tr> <Tr> <Td> 1970 </Td> </Tr> <Tr> <Td> </Td> </Tr> <Tr> <Td> 1980 </Td> <Td> Daniel Ludwig </Td> <Td> </Td> </Tr> <Tr> <Td> 1985 </Td> <Td> Sam Walton </Td> <Td> </Td> </Tr> <Tr> <Td> </Td> <Td> John Kluge </Td> <Td> </Td> </Tr> <Tr> <Td> 1995 </Td> <Td> Bill Gates </Td> <Td> </Td> </Tr> <Tr> <Td> 2000 </Td> </Tr> <Tr> <Td> 2005 </Td> </Tr> <Tr> <Td> </Td> </Tr> <Tr> <Td> 2015 </Td> </Tr> </Table> <Tr> <Th> Year </Th> <Th> Name </Th> <Th> Picture </Th> </Tr>

Who was the richest man in the world in 1970