
Sweden's Volvo made the three-point seatbelt design patent open and available to other car manufacturers for free, in the interest of safety. It saves one life every 6 minutes.
17% of all Finns are lactose intolerant, but the country still drinks the most milk per capita in the world.
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The US knew this and had deviced a counter: Nuking all Danish straits until it was impossible to sail through them.
In case of WW3, Denmark would not only have ceased to exists as a country and a people, it would have ceased to exist as a geographical features.