Here's a bit, AG.
You need to know, for instance, who Sake Dean Mahomet was.(He was the man who introduced shampoo to Britain. Honestly.) You need to know by what other name the 1944 Education Act is known. (The Butler Act) You need to know when life peerages were created(1958) and in what year the maximum length of a working day for women and children was reduced to ten hours. (1847).......
.............You even have to know a few things that aren't, in fact, true. If, for instance you are asked, 'What are the two most distant points on the British Mainland? you have to say, 'Land's End and John o'Groats' even though they are not. This is one tough test.