IBU champions

[Marchegiano]

Hi guys, I've been working on various lists of champions going back from 686 BC to the present day. I'm having a hard time finding sources for some early sanctioning bodies and/or clubs from the more modern era.

Does anyone have a list or some such similar resource covering the IBU lineage?

Also, any source on the lineage on the colored champions would be great. Along with any source of what entities backed or sanctioned the colored championship bouts and if those titles were actually called colored championship or if that was a colloquial that has stuck to today.

thanks for any help.

[SteveO]

I have lists of those (heavyweights only though).
Regarding the IBU, do you mean the original organization or the one created in 1996?
PM me if interested.