The game of baseball is known for unforgettable characters. One of those celebrated his 75th birthday earlier this week.

Cardinal broadcaster Mike Shannon observed that milestone Tuesday. Shannon was a standout athlete in high school in St. Louis and at the University of Missouri before being signed by the Cardinals. He was a member of the world championship teams in 1964 and 67, and the National League championship squad in 1968. His career was cut short by a kidney disorder in 1970.

After a year in the front office, Shannon joined Jack Buck in the Cardinal broadcast  booth in 1972. And he's been there ever since.

You can say what you will about Mike's broadcast style - unique to say the least - but most definitely unmistakable. His style, along with his involvement in the St. Louis community, has made him an unforgettable character.

A big part of what makes Mike Shannon an institution is his different spin on the English language. We found this quiz on stltoday.com to test your "Shannon-ism" knowledge.

Happy 75th Birthday, Big Boy!