Felony or misdemeanor
In Maryland, crimes are either considered felonies or misdemeanors. Traditionally, felonies are considered more serious crimes. However, both felonies and misdemeanors can carry very long sentences.
Under Maryland law, a crime is a felony if either:
The crime has historically been a felony under the common law (e.g., murder, manslaughter, robbery, rape, burglary, larceny, arson); OR
The statute defining the crime says that the crime is a felony.
If a crime is not a felony, then it is a misdemeanor.
Read the case: Bowser v. State, 136 Md. 342 (Court of Appeals, 1920)