No, there has never been a perfect bracket in the history of the modern NCAA Tournament. In fact, no one has really ever been remotely close.
According to the NCAA, a random person with no knowledge of basketball has about a 1-in-9-quintillion chance – that's 9,223,372,036,854,775,808 – to nail a perfect bracket.'
If you’re a real college hoops fan, those odds improve dramatically, as you can eliminate many of the silliest possible upset candidates. (Sorry, No. 16 seeds, you're probably not going to the Final Four.
Still, even a college basketball odds expert has a mere 1-in-120-billion chance to get every single pick right.