User blog comment:Drakan95/Omi vs Percy Jackson. Epic Rap Battles: Cartoons vs History/@comment-4328703-20150904191424/@comment-4920659-20150905111011

History is anything that existed, and it's used as a term in these kinds of series to have opponents for anyone except the theme of the other half of the series. It would be easier to have that title than "Cartoons vs Anything". Pop culture is a part of history, and that's often what's used in ERB. Grimes vs White wasn't historical, but there weren't a lot of complaints that came from that because of the fans that the shows had. It's also a better matchup since they both learned to use water elements, so Omi against the god of water wouldn't be even.