Question:Why was the kingdom of Brobdingnag cut off from rest of the world?
Answer: The people of Brobdingnag are described as giants who are as tall as 60 feet high and whose stride is ten yards. All of the other animals and plants, and even natural features like rivers and even hail, are in proportion. The rats are the size of mastiffs, with tails "two yards long, wanting an inch", while mastiffs are "equal in bulk to four elephants". Gulliver describes flies "as big as a Dunstable lark", and wasps the size of partridges, with stings "an inch and a half long, and sharp as needles". This also means the country is way more dangerous for people of normal human size, as evidenced by Gulliver using his hanger much more often here—namely, on attacking vermin—than in the other of the strange countries he visited, but the people are civilized. A splacknuck is an animal about 6 feet (1.8 m) long, to which Gulliver is compared in size, although it is never explained which animal it corresponds to. Fossil records are claimed to point out that the ancestors of the Brobdingnagians were once even larger, but it is possible scholars have misidentified the fossils as human, which happened in Europe also at the time. The King of Brobdingnag argues that the race has deteriorated. The language of Brobdingnag is depicted as being of a character distinctively different from that of Lilliput, and appears to possess a top quality somewhat like Slavic languages, above all.