"Crime of the century" is an idiomatic phrase used to describe particularly sensational or notorious criminal cases.[1] In the United States, it is often — though not exclusively — used in reference to the Lindbergh kidnapping. However, the phrase was in popular use much earlier in the 19th-century and has been re-used repeatedly ever since.[1][2]
Other criminal cases that have also been described as "the crime of the century" include the Leopold and Loeb case[3] and the Richard Speck case.[4]