One day?
Well, Eagle Day was one day of some seven months of ever-changing air raids and air assaults towards England. Yes, it was an important day - perhaps easiest one to remember.
But the most important “day” in the Battle of Britain happened when Hitler-Goering got “mad” at Churchill’s RAF raid on Berlin (ordered only AFTER a German raid on military targets “missed” and bombed London itself). THAT decision stopped the very successful German raids on the RAF bases and radar sites!
And THAT decision (to stop hitting the very vulnerable RAF bases) saved England.
That and radar. Goerring didn’t have it, couldn’t believe it, and was dumbfounded that the RAF was always there, waiting for them.
The RAF shot down 1600 of Hitler’s 2000 planes.
If it hadn’t been for English radar the Battle of Britain would have been lost and followed up with a Wehrmacht ground invasion rather than Hitler having Rommel dig in and defend the coast of France.
RAF shot the daylights out of the Luftwaffe, sorely depleted them. Germans turned it into a bitter joke, since the Brits were doing night bombing and the US was doing daylight raids.
German joke ran:
“How can you tell whose planes those are in the air over us?”
“If they show up by night they’re the English. If they show up during the day they’re Americans.
If they don’t show up at all they’re the Luftwaffe.”