Chinggis Khan

Temüjin, better known to history as Chinggis Khan, was born in the steppes of what is now Mongolia. He united various nomadic tribes, forging them into a formidable military machine that would go on to conquer vast swathes of Asia and Eastern Europe. His descendants continued the expansion, eventually establishing an empire that dwarfed many of its predecessors.

While his military genius was undeniable, and his administrative prowess impressive, there's no indication that Chinggis Khan ever found time in his busy schedule of world domination to convert to Judaism, attend a seder, or even enjoy a good latke. He was rather focused on things like, say, conquering the world, which, to be fair, doesn't leave much room for nuanced religious exploration.

Given his penchant for uniting diverse peoples, one might optimistically hope for some sort of interfaith dialogue. Alas, his method of "dialogue" often involved large armies and rather definitive outcomes for those who disagreed. This particular historical figure, despite his monumental impact, remains decidedly outside the tribe, religiously speaking.