1815 Birthday George Boole, mathematician, Boolean algebra 1416 Death Blaise/Blasius of Parma, Italian astrologist/philosopher/algebra, dies 1131 Death Omar Khayyam, poet, mathematician, physicist, astronomer, wrote, Treatise on Demonstration of Problems of Algebra, dies 1048 Birthday Omar Khayyam, born in Nayshapur, Iran, poet, mathematician, physicist, astronomer, wrote, Treatise on Demonstration of Problems of Algebra