It's highly unlikely that there was ever a day when no one was born.
Here's why:
- Human births occur constantly: People are born around the world every single day, at all times.
- Population growth: The human population has been steadily increasing for centuries, meaning that births are happening at a constant rate.
- Statistical improbability: The chances of every single person on Earth deciding to give birth on the same day, and then all those births happening simultaneously, is astronomically small.
While it's impossible to say for certain that there has never been a day without a single birth, the sheer volume of births happening globally makes it highly improbable.