Answer: No, there hasn't been a world war 5? (I think that is what you are asking) Probably none we will all have died off from the previous last 2 world wars.
Explanation:
Changes in factors like average income and preferences can cause an entire demand curve to shift right or left. This causes a higher or lower quantity to be demanded at a given price. Demand curves relate the prices and quantities demanded assuming no other factors change. It is important for consumers to know this information, because it is crucial for them to know what they can afford and can't afford.
By this, he meant that the period was glittering on the surface but corrupt underneath.
I think the answer is 1933