Wow, you managed to take it where I thought it would go. Your mom must be proud.
There. Fixed it for you. My mother is in fact proud. But I am also a masochist, leaving you all kinds of openings to make me look like a total fool, by sharing all the secret documented histories written for Africans by Africans, describing all the scientific achievements that were presumably stored for safekeeping in the Library of Alexandria.
The Greeks were just lucky. They had branch libraries...
Damned plagiarists!