Too Many Rooms on on One Circuit?

Yes, the lights came back on after flipping it back. I am a renter. I have mentioned it to the landlord, but have not heard anything back yet.

Did the lights in all the rooms come back on when you reset the breaker? If so, then they are all on the same breaker and in modern wiring practice that should not be done. We have so many different electrical items available now the rooms should be on seperate breakers (and wiring) to handle the load. The breaker tripping helps prevent fires, it cuts the power before the load can cause the wiring to overheat and cause a fire. I would get a licensed electrician to look at your wiring and give an estimate on updating it.