We bought an old 1940's farm house and have slowly been working at remodeling it. Recently we have been converting attic space to closets (there were none) and adding the lighting and outlets has been pretty straight forward. Now we are on the last closet and have come across wiring I haven't seen before. The main power comes into the light (a pull chain type) then splits out two different directions - one way to a light in the bathroom (again pull chain) and the other in the opposite direction to a wall outlet. Is this safe? when I took the box off the light all the wires were pigtailed and split out before going into the light- making multiple connections from one. Should we stick with this same wiring scheme or re-do it what I will call "straight line" which is what I am used to?

I am trying to replace my existing oven with a Kitchenaid built in. Both the old oven and new one had the following wire set up: Black Red WHite and ground clamped together. However, the electrical supply is only a two wire system with white, black and a bare ground. When I disconected the old oven, I believe it was black to black, red to the white, and the white/ground to the bare ground wire. Do I need to run a new 3 wire 8 gage wire or can I safely use the existing wiring?