ATLANTA (NewsNation Now) — Former President Jimmy Carter marks his 96th birthday Thursday, the latest milestone for the longest-living former U.S. president.

Carter planned to celebrate at his home in Plains, Georgia, with his wife of 74 years, Rosalynn Carter, according to a spokeswoman for the Carter Center in Atlanta. As of last year, the Carters are the longest-married presidential couple in history.

The 39th president, in office from 1977-81, has largely receded from public view amid the coronavirus pandemic and his own health challenges due to a series of falls in 2019. He previously survived a dire cancer diagnosis in 2015.

You can send Carter a birthday message on the Carter Center website. Established in 1982, the Carter Center “seeks to prevent and resolve conflicts, enhance freedom and democracy, and improve health,” according to its website.