ADL got it's start in the 1910's, defending/rehabbing/whitewashing the legacy of a jewish rapist/murderer who was convicted despite there being another suspect, a negro, available.

Put another way, the evidence against the jewish business owner was so preponderant and overwhelming that Southern redneck racist nigger-hating jurors in the early 1900's decided the black guy was innocent.

Polishing the image of the rapist/murderer and trying to rewrite history is how the ADL got it's start. And the ADL has continued to build on a foundation of lies and bullshit.