The Phoenicians, fleeing the threat of genocide under the Assyrians, were forced to live as sea-faring traders. They encountered many different markets, counting systems and languages. They needed to take notes, in order to simply survive.
They invented the alphabet.
Mind you, war can really mess up the markets, even if it is good for business with arms deals and people paying over the odds for basic necessities.
As soon as the ancient Persians began their rampage across Asia, the populations in their bloody path started to panic about their wealth. It was no good having tons of assets, if you were about to be over-run. Something a little more portable was required, though it had to be trustworthy.
Enter the Lydians with their ingenious idea for coinage. Standard size, all the same value across the land, easy to shove in your pocket. 'Currency' because it's only supposed to be current during war. Then you can go back to trading in rice, like the Sumerians. Yeah, right.
They invented currency and national stock markets.
Exiled, enslaved and scattered, the ancient Jews were in danger of losing their language, culture and everything else besides. They came up with the ingenious idea of writing it all down. Not just their stories, legends and history, but their laws and etiquette too.
War created the first religious book in the Torah. It also gave rise to monotheism, because the person writing down things like 'there is only one God' was the one to preserve that notion. Radical as it was at the time.
When the sheer scale of carnage, during the First World War, caused a massive shortage of bandages, a paper mill found a solution. Kimberly-Clark had accidentally soaked wood pulp enough times to realize that it created a brilliantly absorbent mass. They packaged it up as cellucotton and sent it to the front line.
Allied nurses were the first to use them on wounded soldiers; then the first to realize that there was another handy use for such pads.
The sanitary towel and tampon were created.
In a similar vein, all stockings were made from silk, manufactured in Japan, until the Second World War. The country of origin caused a bit of an issue for ladies in Allied countries, as the Japanese weren't selling to the enemy.
Nylon was invented in an American laboratory, just to shut the fashionable crowds up!
The microwave oven is only possible because the cavity magnetron was invented for radar during that same war. The Cold War sent us to the moon.
History is peppered with such innovations. Stick us in a war and it seems that human beings soon start becoming very resourceful. Inventions flood the patent offices and some of them really do change the world.
Now can you see why the Crone is a war goddess? Death and rebirth. It's Her realm.