OFFICIAL MATHEMATICA DAY House SponsorsRep. Naomi D. Jakobsson 1/13/2009HouseSession Sine Die Designates June 23 as "Official Mathematica Day" in the State of Illinois in honor of the 20th anniversary of the program created by Wolfram Research, Inc.. 5/6/2008HouseFiled with the Clerk by Rep. Naomi D. Jakobsson 5/7/2008HouseReferred to Rules Committee 1/13/2009HouseSession Sine Die