In United States trademark law, Abercrombie & Fitch Co. v. Hunting World, 537 F.2d 4 (2nd Cir. 1976) established the spectrum of trademark distinctiveness in the US, breaking trademarks into classes which are accorded differing degrees of protection. Courts often speak of marks falling along the following "spectrum of distinctiveness," also known within the US as the "Abercrombie classification" or "Abercrombie factors". The lawsuit was brought by Abercrombie & Fitch Co. against Hunting World, Inc. regarding Abercrombie's trademark on the word "Safari", and resulting in Abercrombie's loss of the trademark.