deaths
December 12, 2014
Ivor Grattan-Guinness, English mathematician, historian, and academic (born 1941)
Ivor Grattan-Guinness
Ivor Owen Grattan-Guinness was a historian of mathematics and logic.
December 12
December 12 is the 346th day of the year in the Gregorian calendar; 19 days remain until the end of the year.