Alan Greenspan, the influential economist who chaired the Federal Reserve from 1987 to 2006, died on Monday at the age of 100.

NBC News correspondent Andrea Mitchell, Greenspan’s wife, confirmed his passing in a statement to the Washington Post.

Greenspan passed away at their home in Washington, D.C., from complications of Parkinson’s disease.

“Alan passed away at our home this morning at the age of 100 from complications of Parkinson’s disease,” Mitchell said.

Mitchell added that he was “a giant of a man who helped shape the U.S. economy for decades under presidents of both parties, but was always honest in acknowledging his mistakes.”

She also described him personally, “To me, he was my husband, who shaped my life from our very first date in 1984.”

Greenspan was born on March 6, 1926, in New York City.

He served as the 13th Chairman of the Federal Reserve Board of Governors for nearly 19 years, the second-longest tenure in the position’s history.

President Ronald Reagan appointed him in August 1987. He was reappointed by Presidents George H.W. Bush, Bill Clinton, and George W. Bush.

Greenspan stepped down on January 31, 2006.

During his time at the Fed, he helmed our economic policy through major events including the 1987 stock market crash, the long economic expansion of the 1990s, the dot-com bust, and the aftermath of the September 11 attacks.

He was widely viewed as one of the most powerful unelected officials in Washington during his era.

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