My guess is:
Run up and down / Run down and up
That's how to draw a line with a pencil
By ancient Israelites and classical Romans / But not Africans or Middle Ages Europe
Possibly numeral systems? Both Roman And Israeli numeral systems contain vertical lines as numbers (I, II, III etc. for Roman, Hebrew number 6 is a straight vertical line), whereas African and European numeral systems do not.
Till today in every building / The electronic alternative is in use.
Electrical lines are in every building (not sure if wires or telephone lines are meant by this)
Yet this remains in every building.
Building lines are regulation to make sure buildings do not cross into the street or onto someone else's property.
"A Line" sounds like "Align", which means to be the correct orientation (or "This Way Up!" from the question title).