Pi Day was first celebrated in 1988 at San Francisco's Exploratorium, a museum of science and technology that encourages visitors to be hands-on.

Stuck on what to say? Here’s what to write in a birthday card for a friend, coworker or that special someone in your life.

Show your BFF some love on their special day using one of these touching or unique birthday wishes for best friends.

Today marks the birthday of one of the most devastating and reliable finishers in Premier League history. That man is Didier ...