Short answers, pulled from the story.
Broccoli originated in the northern Mediterranean, where landrace Brassica crops were selectively bred starting around the sixth century BCE. It was most likely developed through artificial selection on the southern Italian Peninsula or in Sicily, and it spread to northern Europe by the 18th century and to North America in the 19th century via Italian immigrants.
The word broccoli comes from the Italian plural of broccolo, meaning "the flowering crest of a cabbage." It is a diminutive form of brocco, an older Italian word meaning "small nail" or "sprout." The name was first used in English in the 17th century.
A 100-gram portion of raw broccoli provides 99% of the Daily Value for vitamin C and 85% of the Daily Value for vitamin K. It also contains moderate amounts of several B vitamins, potassium, and beta-carotene.
Boiling substantially reduces broccoli's glucosinolates, including sulforaphane precursors. Steaming, microwaving, and stir-frying preserve glucosinolate levels far better, making them preferable methods for retaining broccoli's characteristic sulfur-containing compounds.
The bitter taste of broccoli comes from glucosinolates and their hydrolysis products, particularly isothiocyanates and other sulfur-containing compounds. Preliminary research suggests the gene TAS2R38 is partly responsible for differences in bitter taste perception among individuals.
In 2024, China and India together accounted for 73% of global broccoli and cauliflower production, which totaled 27 million tonnes. In the United States, California produced 92% of the national fresh-produce broccoli crop in 2024, growing it year-round.