But in the last few weeks, this little fighter celebrated his first birthday and received his official designation as the world’s most premature baby from Guinness World Records. This isn’t a record that Nash’s parents, Randall and Mollie Keen, wanted to break, but they’re thrilled to have an extra reason to cheer for their son.

With a party hat and a cake topped with a mountain of whipped cream, Nash celebrated his first birthday as he broke the Guinness World Record for most premature baby, officials said. Nash Keen broke the world record for most premature baby as he marked his first birthday with his parents, Mollie and Randall. Photo by Guinness World Records

An Iowa infant who was born at just 21 weeks of gestation celebrated his first birthday earlier this month with a new title – “the most premature baby” of all time. Nash Keen weighed only 10 ounces when he was born on July 5, 2024 – 133 days before his due date, early enough to land him in the Guinness Book of World Records.