The ability of a dog to learn from humans has often been linked to its intelligence. Using the dog breeds topic from PetBreeds and data from The Intelligence of Dogs by UBC psychology professor Stanley Coren, we found and ranked the 17 least intelligent dogs by obedience intelligence.
Decades later, in 1945, Dumbledore finally defeated the now-Dark wizard Grindelwald, who had come to possess the Elder Wand. Grindelwald's defeat made Dumbledore the master of the Elder Wand, which remained his until just before his death, when Draco used the Disarming Charm on him.
After the Scouring and reconstruction of the Shire, Sam and Frodo meet Bilbo again on the way to the Grey Havens, on 22 September 3021. That was Bilbo's 131st birthday. So Bilbo was 131 when he sailed into the West.