No shit.
Sub-Saharan African men created Western civilization and the Roman Empire, much less invented plumbing.
they may have laboured for the white man...
Even Black Leprechauns had their role in European civilization.
Yes they travelled all over Europe showing them how to build Cathedrals and Stately Homesyou can see the heavy influence in the shape of the roof
Precisely. Stick domes are engineered to last for thousands of minutes.