Eurofed
Banned
And about scientific progress...in ancient/medieval ages I think this would make a better progress for science... (think about Roman Empire and Islamic Caliphate...)
Yup. Or Imperial China for the vast majority of its history.
But in modern age...I would imagine a world full of dictatorism, communism, nazism...
Or conversely a world full of US-like democracy.
I think an ancient/medieval world-dominating empire was highly improbable, though... (except Eric's TL...)
To be truly world-dominating, an empire needs at least Early Modern technology. and its control only becomes deeply entrenched with Victorian Age tech. But Eric's TL is indeed a compelling evidence of how an empire with the right characteristics could get to assimilate and have a stable rule over half of Eurasia in the pre-Exploration age. This creates the "critical mass" to become world-dominating later.