The Illinois State Fair is devoting its traditional agriculture day to celebrating the 150th anniversary of the U.S. Department of Agriculture.

Abraham Lincoln signed legislation creating the agency back in 1862.

Former Agriculture Secretary John Block will be on hand for a ceremony Tuesday highlighting the department's achievements. Before serving under President Reagan, Block was also director of the Illinois Agriculture Department.

The fair will also mark the 150th anniversary of legislation establishing land-grant universities like the University of Illinois.