Well, scripture says it was the world, so that's what it was. If another culture collaborates it or not is irrelevant. It's just likely we haven't found the appropriate documentation/artifacts yet. Eventually, science/history will likely catch up.
And no, sorry. I haven't heard of your football team.
From the Bible:-
In Exodus 10:5 a plague of Locusts "covered the face of the whole earth."
Quite clearly the locusts did not cover the whole globe, they only covered the land of Egypt and then probably not all of it.
In Numbers 22:5,11 we read that after the Israelites were delivered from Egypt and settled in Canaan they "Covered the face of the earth."
This is simply their way of saying they occupied the land in which they were dwelling.
When Cain went to the Land of Nod the Bible says "Behold thou hast driven me out this day from the face of the earth." (Gen 4:14) The earth for him was the place where he lived.
When the devil tempted Jesus he took him up into an exceeding high mountain, and sheweth him all the kingdoms of the world, and the glory of them; And saith unto him, All these things will I give thee, if thou wilt fall down and worship me. The kingdoms of the world were what they could see i.e. local. (Matthew 4:8)
The same idiom is used to describe the Israelite conquest of Canaan,
Deut 2:25 This day I will begin to put the dread and fear of you on the peoples who are under the whole heaven, who shall hear the report of you and shall tremble and be in anguish because of you.
Incas and Inuit weren't trembling in anguish, it was the people in the region, Canaanites Moabites and Edomites.
When the Bible talks about the whole land or the face of the earth, it means the land or the earth of Israel and not the whole globe. Noah did not go collecting animals from all seven continents, they would have been local to him.
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