I studied History from 1st to 3rd year at senior school (years 7-9, these days) in mid 1980s and World War II was in there, including the Holocaust - though, from memory, I don't recall it being termed that at the time.
The attempted genocide of the Jewish people was definitely in there, though, alongside the other 'undesirable' elements of society that were carted off; the emphasis was on the camps themselves, it seemed to me, and the methods that were used to show that this had really happened.
My history teacher had served in the Pacific, and he seemed disgruntled that the WWII module was so focussed on mainland Europe.
O.