WASHINGTON — The scientist credited with agriculture's so-called "Green Revolution" has a permanent home in the U.S. Capitol.

Lawmakers unveiled a statue of Norman Borlaug on Tuesday in a ceremony on what would have been his 100th birthday. Borlaug died in 2009.

The Iowa native and University of Minnesota graduate is credited with saving as many as 1 billion people from hunger by creating a type of wheat that was disease-resistant and high-yielding. His work won him the 1970 Nobel Prize, the Presidential Medal of Freedom and the Congressional Gold Medal.

Borlaug's statue will serve as one of two for Iowa in the Capitol and will replace one of James Harlan, a former senator friend of Abraham Lincoln. It had been in place for more than 100 years.