Graves 1843 + Cayley 1845: 8-dim non-associative + non-commutative division algebra O; only nonassociative normed division algebra; sole reason for E_8 + G_2 exceptional groups.
Graves 1843 + Cayley 1845: 8-dim non-associative + non-commutative division algebra O; only nonassociative normed division algebra; sole reason for E_8 + G_2 exceptional groups.