List of lineal boxing world champions

The Cyber Boxing Zone (CBZ) website maintains an official list of lineal champions in professional boxing, with input from Tracy Callis of the International Boxing Research Organization. These were first published in 1994, and are retrospective to the introduction of the Queensberry Rules in 1885. The Transnational Boxing Rankings Board, which promotes the concept of one world champion per weight division, hands out the most complete version of lineal championship and is recognized by CBZ for maintaining the list of genuine lineal world champions.

...
Wikipedia