How would it be possible to make cabbage a staple food of a diet somewhere, perhaps up to the modern day?
What exactly do you mean by staple?
Hey, romans REALLY digged cultivating the Brassica varieties they knew... Asterix made jokes on it. And the chineses (and sinosphere) use it a lot too, varieties as Bok Choys...
A "staple" crop is one from which one gains a large proportion of one's caloric needs, and as such cabbage could never provide the nutritional value to replace grains, pulses, or root crops. A cuisine based on cabbage would make you malnourished and constipated, but at least you could levitate on the force of the gas you'd pass all day long
I agree on malnourishment, but since when did fibers cause constipation and fart? Isn't it the opposite?
A "staple" crop is one from which one gains a large proportion of one's caloric needs, and as such cabbage could never provide the nutritional value to replace grains, pulses, or root crops. A cuisine based on cabbage would make you malnourished and constipated, but at least you could levitate on the force of the gas you'd pass all day long