After WWI in england, they knew that alot of soldiers would not have homes to come home to. So they announce that they would build 1,000,000 new homes for these soldiers. If they did that today, at todays median home price in the U.K., that would equate to about 400 billion dollars (at todays exchange rate of course) And that was in 1920 when 400 billion dollars was actually worth something!