Wuyi tea Because green tea formed the bulk of their imports, and because the Wuyi region was initially the main source of the darker teas available to them, the term "Bohea" (based on the local Fujianese pronunciation of "Wuyi") became a blanket name in English for all dark teas; the modern designations "black" and "oolong" were not yet in use. Over time, distinctions began to be made between different dark teas. Lapsang souchong, a Wuyi tea and possibly the first black tea to be produced, was separately traded as "Souchong" for a higher price, while the highest quality black tea was given
Abelian variety of an abelian variety is necessarily commutative and the variety is non-singular. An elliptic curve is an abelian variety of dimension 1. Abelian varieties have Kodaira dimension 0. In the early nineteenth century, the theory of elliptic functions succeeded in giving a basis for the theory of elliptic integrals, and this left open an obvious avenue of research. The standard forms for elliptic integrals involved the square roots of cubic and quartic polynomials. When those were replaced by polynomials of higher degree, say quintics, what would happen? In the work of Niels Abel and Carl Jacobi, the answer was formulated: