Short answers, pulled from the story.
Joseph Jakob von Plenck described the scientific name Brassica oleracea var. italica in 1794 within his publication Icones Plantarum Medicinalium. This classification placed broccoli firmly within the cabbage family known scientifically as Brassicaceae.
Farmers began breeding landrace crops from the northern Mediterranean region around the sixth century BCE. Roman Empire cultivars formed the primitive foundation for what we eat today while artificial selection likely improved the vegetable on the southern Italian Peninsula or in Sicily.
Worldwide output reached 26.5 million tonnes in 2023 according to combined production reports for broccoli and cauliflowers. China and India together accounted for 65% of the global total that year with secondary producers like Mexico Spain and the United States each generating roughly one million tonnes annually.
Raw broccoli consists of 89% water along with 7% carbohydrates and 3% protein. A reference amount delivers 99% of the Daily Value for vitamin C and 85% for vitamin K while containing negligible fat.
Boiling substantially reduces glucosinolates levels within the vegetable compared to other techniques. Steaming microwaving and stir-frying preserve these compounds without significant loss according to available data.