Marcel Louis Brillouin, French mathematician, dies His 200 research papers spanned the kinetic theory of gases, viscosity, thermodynamics, melting conditions and electricity, the stability of aircraft and atomic structure 

First US airplane sold commercially, by Glenn Curtiss for $5,000 

Jim Thorpe makes his pro baseball pitching debut for Rocky Mount (ECL) with 2-Apr win, this will cause him to forfeit his Olympic medals 

Ford Motors incorporates 

Pepsi Cola company forms