They did record it, but skin color is not very important. Your race and people is. Jesus was an Israelite.

The church went into many lands, because Israelites got scattered into the many nations by the assyrians.
At the time of Jesus, northern Africa was white, the middle east too, and even ethiopia had white people living there called WHITE-Ethiopians by the greeks.

The darkening of those lands happend after the introduction and conquest of islam.