Adolf Hitler wanted to attack in the west immediately after the fall of Poland, but unfavorable weather kept postponing the offensive. Then a copy of the plan fell into Allied hands.

With the other Great Powers involved in their own wars, Stalin and the USSR are now free to claim the territories Germany granted to their "sphere of influence."

When Germany invaded Poland in 1939, it freed the Nazis from having to worry about international opinion. Hitler and his followers could now do as they pleased.

With the narrative at the beginning of the Second World War, we pause to consider what lessons can be learned from the past twenty years.

Adolf Hitler believed that the leaders of France and Britain would be too cowardly to go to war to defend Poland, but even if they did, he was willing to take them on. Here we go again...

As Germany was ratcheting up the pressure against Poland, it and the USSR signed a non-aggression agreement. No one knew it at the time, but this agreement contained secret protocols that, among other things, divided Poland between them.

Electronic amplification allowed singers and musicians to perform in a softer, more intimate way. The new styles became very popular, especially in the USA.

By 1938, it was clear the Spanish Republic was in trouble. British and French efforts to maintain peace with Germany and Italy had the side effect eliminating whatever hope remained.

Roosevelt was re-elected in 1936 by an historic margin, but the years 1937-38 saw him stumble.

Over the course of the 1930s, entertainment on radio evolved into a mix of drama, situation comedy, soap opera, and kids' programming that would serve as the model for broadcast entertainment for the rest of the century.