Today, Oregon author Beverly Cleary turns 100! She’s probably best known for her characters Ramona Quimby and her sister Beezus, Henry Huggins, Ralph S. Mouse and his motorcycle, Socks the cat and many more. 

Just before her birthday, Cleary sat down with OPB to film the first ever documentary of her life, “Discovering Beverly Cleary.” The documentary explores Cleary’s childhood and early influences, and reveals her inspiration for the beloved characters she created.

Test your Cleary knowledge with our quiz, see snapshots of the last 100 years of her life and watch the entire documentary all on opb.org/beverlycleary.