Jesus. I’ve researched all the known history. Did you know 5 Roman emperors wrote back and forth to their governors bitching about him and the problems Pontius Pilates execution of Christos caused for Rome? And these 5 wrote their letters and subsequent laws to put down the problems Christis’ followers were causing , starting within 7 years of the execution.
You don’t find that easily and it’s more documentation than many emperors had. Since they like to bury that I am sure there’s more.