Although ''rookie of the year'' honours were handed out since the 1932-33 NHL Season , the Calder Trophy was first presented in the 1936-37 NHL Season . Upon Calder's death, the trophy was renamed the Calder Memorial Trophy in his memory.
The Calder Memorial Trophy is not to be confused with the Calder Cup , also named for Mr. Calder, which is awarded to the champion of the American Hockey League .
