How does 1984 apply to WWI (on the homefront) and the 1920's. Explain.

That's a good question. !984 was primarily a post WW2 response. Still here is something: Orwell did not invent the term "two minutes hate"; it was already in use in the First World War.[1] At that time, British writers satirised the German campaign of hatred against the English, and imagined a Prussian family sitting around the kitchen table having its "morning hate".[2]

In addition, short daily artillery bombardments made by either side during the First World War, and aimed at disrupting enemy routines, were known as "hates":