Who created Felix the cat?

For those interested in comic history, there is an article over on the Hudson Reporter about the history of Felix the Cat.

Felix quickly became the star of silent animation for audiences in the United States and Europe, and even starred in his own successful comic strip, which began in 1923.

However, Messmer wasn’t always recognized as the creator of Felix the Cat.

Up until the 1960s, credit for the animated star had been given to Pat Sullivan, but while Sullivan accepted the accolades, Messmer was found to be the true force behind the creation.