This discussion won't end ever because it's impossible to set the values of each criteria over each other. I mean, territory size, is it more important than cultural influence? The migthy of the army is in any sense a larger avance than the amount of prodution?
It's impossible to set that because the answer is always "depends". It depends on what were the values that were currently standing in the world by the time each particular civilizaztion rules.
Let's take for instance the British empire. People here are continuously agreeing that It's a possibility due to it's longevity and it's influence over the globe.
However, it didn't happen because the english language or ulture were in any way better or more appealing than any other. It happened because the british army forced other civilizations to subdue to the British way.
In fact, the British empire were literally swallowed by the pacific resistance they met in Gandhi's India, what is a clear signal that it's culture wouldn't bend for the culture of the opressor.
I am from Brazil, and here we speak portuguese not because the natives recognized it was better than our original (and now wiped out) dyaleths (tupi-guarani was the most commom), but because the Portuguese empire - the largest in the world by that time, along with the Spain - came here and and used it's swords and muskets to shred the tribes.
Ok, Brazil never had an actual Civ in it's territory, it was a colony that was conquered over lots of tribes... But here in America there were 2 great Civs - The Mayas and the Incas - and they were in strong by the time of Europe's great navegations.
They had the biggest marketplaces in the world - They were larger than any European one by that time, and they were only defeated by both the new deseases (as very well put in an early post) and the use of gunpowder, what is, by the way, a Chinese invention.
It's true that both Portugal and Spain failed in building dynastys such as England, but when you speak of it's worldwide influence, you are speaking of it's army strenth, that's all.
If it's a commendable way to expand your culture, it's a decision a leave to the reader.
But there's more to that. The reason the British and the Romans (and even the Greek, to a certain degree) expanded themselves culturally was the mechanism of their echonomics. British empire was the Gold Star of the Merchatilism practise, and it had to travel a lot to practise commerce, and it imposed it's culture (i emphasize imposed) in the process of conquering land. A military achievement.
China, however, never had the sligthest interest in the territory outside it's borders. It became strong without exploiting other people and practised the "live and let live" (well, there was internal wars, like the fighting states - i don't know if that's the way they are called in english, i read "the art of war" in portuguese - and some territorial expansion, but not colonies) and yet people go to chinese restaurants once a month and practise martial arts and use acupuntry).
What i mean is: we are comparing a ravenous philosophy that expanded itself by conquering and destroying others with another culture that influenced people naturally. Of course that the first one, being sucessfull, is more spread; but the other one, being naturally accepted, can, by the reasonable criteria of it's appeal, be considered of higher value. Again, it's up to the reader to decide.
When we speak of Romans, it's culture (ok, ok, a continuation of the Greeks) expanded so much and kept alive until modern times both because a similar expansion (seeking slaves), and because of the Catholic Church (that originaly was a proscrit from it's exactly empire), that in it's large effort to keep people ignorant have FORCED the entire europe to live by roman cultural standarts during the entire Middle Age (even if in a limited sense).
People who dared to disagree with the ancent trues would be burn to the ground back then (nice way to keep the "status quo" in a closed rigid society). And the Church factor is also true about the greeks.
On the other hand, The Afro-American culture cannot be denied, and also can't other important african influences that digs even deeper. Have you guys ever heard of vodoo dolls, just to speak of the religious aspect of some ancient tribes culture? It's a myth that lives up to this day, even having being brought inside slaveships.
Can we ignore that each civilization had some influence over the others, and that it's hard to measure the depth of it? Here in Brazil, there are costumes with deep African influence in some poarts of the country, and they are as rooted as the Roman influence that reached us here.
And "Dragon Ball Z" and "Pokemon" are on the tv as i write this, in english, using the amrican invention called internet.
What i mean from all that is: ALL civilizations have shaped the world, not just a few. Some more obviously, some more visibly, but all of them changed the others equally, both by impregnating them with their costumes or passively being the subject of the other's decisons or demands.
All of them were remarcable in the field that they excelled best.
USA is what it is because of the romans and the british and the zulus and persas and the list goes on and on. And so is Brazil and so is even Afeghanistan. The historical process that interfere in the shaping of each civilization is far too complex and far to intrincate to be analized with black-and-white clains like "they had more battleships and more countries workships their Gods and their language is the most spoken".
Lemme put it like this: If i had a civilization in wich the most desired achievement is to stay in the countryland and build a temple, and i do it, i think it's a more sucessfull civilization than one that wants to conquer the world and stops 3/4 of it.
Specially, because if a civilization is prospering, meeting it's goals, it simply doesn't care if the others are impressed or not with it, even tough they probably will be.
It's all about the gap between what you want and what you get.
Of course, it's just me and i can be wrong...
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