Bernhard Riemann (1826–1866) is widely regarded as one of the leading mathematicians of the nineteenth century. He developed Riemannian geometry which is the basis for Einstein’s theory of gravitation. He also developed important theories relating to complex analysis, real analysis, number theory, and mathematical physics.
This soft pillow is an excellent addition that gives character to any space. It comes with a soft polyester insert that will retain its shape after many uses, and the pillowcase can be easily machine washed.