What is associated with: before its 1846 sighting this 8th planets existence was deduced from its gravitational effect on other planets?

Based on the clue 'before it was fleeced it could fly helle fell from...', what is the answer? Based on the clue 'before it went christian the cathedral of cordoba ...', what is the answer? Based on the clue 'before it went preppy this pairs store outfitted e...', what is the answer? What is associated with: before items like the hp color laserjet 2600n this term referred to people like gutenberg? What is associated with: before its completion in 1917 the quebec railway bridge over this river collapsed twice? Based on the clue 'before its galvanized iron is cleaned with this ve...', what is the answer? Based on the clue 'before its independence this country was known as ...', what is the answer? Based on the clue 'before its name was changed this ship of sir franc...', what is the answer?