Mark Zuckerberg wearing a black t-shirt that reads
Mark Zuckerberg wearing a t-shirt that reads "Carthago delenda est," a famous Latin phrase.
  • Mark Zuckerberg made a telling fashion choice for a celebration of his 40th birthday.
  • His shirt read "Carthago delenda est," a Latin phrase familiar to generations of schoolboys.
  • It has a special significance for Zuckerberg, who used it as a call to arms in early Facebook history.

Carthago delenda est — mean anything to you?

It certainly meant a lot to people hanging around the Roman Senate some 2,200 years ago. And also to Mark Zuckerberg.

In a series of photos showing the Meta founder celebrating his 40th birthday, Zuckerberg had a striking black shirt with a Latin phrase on it.