William Rowan Hamilton
died 152 years ago
2nd September 1865

In 1843 William Rowan Hamilton discovered the quaternions, the first noncommutative algebra to be studied. He felt this would revolutionise mathematical physics and he spent the rest of his life working on quaternions.

Find out more at:
http://www-history.mcs.st-andrews.ac.uk/Mathematicians/Hamilton.html