A baby born at 21 weeks' gestation in Iowa City, Iowa, celebrated his first birthday, earning a Guinness world record for being the most premature baby.

A baby born at only 21 weeks of gestation last July in Iowa City, Iowa, has just celebrated his first birthday, and among his gifts is a Guinness world record for most premature baby.

A baby born at 21 weeks' gestation in Iowa City, Iowa, celebrated his first birthday, earning a Guinness world record for being the most premature baby.

A baby born at 21 weeks' gestation in Iowa City, Iowa, has celebrated his first birthday, earning a Guinness world record for being the most premature baby.