What's your definition of history though? Because I'm pretty sure every EPL team has a history.
If we're being honest, City has produced some of the most exciting games with crazy scenarios in the CL in the past 5 years. The only thing is that they've always been on the losing end of those games/ties.
City were shit before the takeover. Chelsea were much better before their takeover. City are manufactured. With all their billions and supposedly the best manager in the world, they've got 0 to show for it internationally. They haven't been able to attract fans either, because they're boring. Their players have no character, they're just robots performing their tasks. They can sub the whole team and you'd barely notice.
The fact that United fans prefer City winning the league is telling. City are not taken seriously. It could change in the future, but they have a long way to go.