| February 14 
Today is Valentine's Day. 1876: Alexander Bell filed an application for a patent for the telephone. 1877: American radio pioneer Greenleaf Pickard, inventor of the crystal detector, was born. 1924: International Business Machines (IBM) was born when Computing- Tabulating- Recording Company formally changed its name. 1943: German mathematician David Hilbert, of Hilbert Transform fame, died. 1950: American physicist Karl Jansky, the "Father of Radio Astronomy" who discovered the cosmic background radiation, died. 1961: Lawrencium (Lr, 103) was produced at University of CA, Berkeley. 1989: The first operational satellite of the Global Positioning System (Block II) was placed into orbit around Earth. |