I'm talking about their contributions... Egypt, and England+France for that matter have minimal power today, but contributions the Egyptians and English and French made were the basis for other developments in later cultures..
Ie America is a major power today, and has made many achievements, but those achievements weren't from scratch. American achievements are based on acheivements previously.. ie Americans did not develop writing, the Sumerians did*
*note: the Aztecs also had writing, but Aztec writing didn't contribute to any other significant developments in other civilizations before the Aztecs were wiped out.
*Chinese writing may not have contributed to American writing... but it led to other things in China that Were contributed to America, ususally indirectly (gunpowder)
The point is that most civilizations have achievements... but not all achievements are lasting contributions... we don't use cuneiform currently, but it was a vital step in the development of what we DO use currently. (not saying it had to be cuneiform, but there had to be some initial system and cuneiform is what it happened to be)
If the Polynesian navigational techniques had been spread around the world before other peoples developed better techniques on their own, then they would be remembered as the civilization who brought seafaring to the world... (they didn't and they are not).
Instead the Europeans "brought" seafaring "to the world" (even though China had better seafaring at that point.. I'm not sure if any Chinese naval technology leaked to Europe... although it probably did somewhat like gunpowder)
Areas that were isolated from Europe (which ended up dominating the world and making the world a lot of what it was) didn't have the chance to either borrow from them or lend to them (like Asia and north Africa did). And they also didn't make significant speed bumps on the path... (like some civilizations in Asia and north Africa did)
And as such the modern world sees primarily the contributions/effects that came through Europe. (civs like China may have contributed a lot more, and are making their own New contributions now, but even they were significantly reshaped by european effects... but less so than many others). All civs have Some effects left over (the cultural effects on Mexico from the Aztecs) assuming the civ didn't go extinct without other peoples knowing about it. But those effects are usually only local, and are often overshadowed by other effects.
So most civs outside of Eurasia can be excluded for Significant historical impact (assuming one is talking about Historical impact on the present day... which is about the best way to tell if it is truly a lasting impact)
However, geographic representation and variety is important for making a fun game. (since it is not a history simulator)