When were power lines created?

Will the horn blow on a car if the battery is dead? How much to replace vstar 1100 starter cluch? Do you need to use the clutch on motorcycles? How many spark plugs in a 7.3L v8 diesel engine? How can you tell where the number 1 wire is on a distributor cap? What does it mean when my dealership tells me my 2008 Jeep Wrangler needs new rear brake rotors and pads at 30000 miles even though I hear no screeching or grinding? 1996 Lincoln Town Car Signature Series Cranks fine but won't start Possibly fuel-system related Any ideas? You have to enter your code for your stereo every time you start your car? What is the tire pressure for a 205 55 16 tire? Why there is current in spark plug? How do you change the rotors on a Hyundai Santa Fe? Is the a fuel line diagram for a 1987 B2200? Headlight went out do you need to buy a whole new headlight or just a bulb? What does the ATF do? Why is it dangerous to use a push-botton switch in the bathroom? Where is the flasher unit situated on a Morris 100 traveler 1967? Where is the Vin on a Honda EB5000x generator? What does a P0420 reading on the check engine light mean on a 1996 ford explorer 6 cylinder? Why would a Toyota relay only click when the key is turned but there are no dash lights and the engine will not crank after the alternator starter and battery have been replace and all fuses are good? How do you change the 2006 Ford Focus air filter?