Caspar Wessel

Caspar Wessel was a Danish–Norwegian mathematician and cartographer. In 1799, Wessel was the first person to describe the geometrical interpretation of complex numbers as points in the complex plane and vectors. ^{Caspar Wessel, Norwegian-Danish mathematician and cartographer (d. 1818)}

8 June 1745

Born on the same birth day (8 June): Derek Underwood • Don Robinson (baseball) • Edmundo Rivero • Emperor Xizong of Tang • Ernst-Robert Grawitz • Erwin Schulhoff • George Edward Hughes • George I Rákóczi • George Pell • Lena Baker • Louise Richardson • Robert Preston (actor) • Russell E. Morris