United colors United colors United colors Sentimental writers and orators sometimes ascribe meanings to the colors in Nicolaus Copernicus 1473 – 1543 exp(ln(pi / 5)) Alan Turing 1912 – 1954 Carl F. Gauss 1777 – 1855 Srinivasa Ramanujan 1887 – 1920 Alan Turing 1912 – 1954 dice + dice + dice + dice Charles Darwin 1809 – 1882 Niels Bohr 1885 – 1962 Joseph-Louis Lagrange 1736 – 1813 Gottfried Leibniz 1646 – 1716 Andrey Markov 1856 – 1922 Nicolas Carnot 1796 – 1832 scientific calculator Leonhard Euler 1707 – 1783 Nicolaus Copernicus 1473 – 1543 Paul Dirac 1902 – 1984 Rene Descartes 1596 – 1650 Nicolas Carnot 1796 – 1832 Terence Chi-Shen Tao *1975 scientific calculator Marie-Sophie Germain 1776 – 1831