"[Maribel] really wanted to have the babies on the same birthday because you know later on in the years, they're going to have a little confrontation and be like, 'my birthday came first,' so it means two birthday parties, back to back," he said, a NBC San Diego twins born in different years →
NBC News noted a case in 2014 that explains why Facebook made the change.
Facebook's 'Year in Review' now lets you remove bad memories →