North Carolina wine there were some 25 wineries in North Carolina, with extensive independent vineyards, to the extent that North Carolina dominated the national market for American wines at the time. The "Scuppernong" grape was the primary source for North Carolina's 19th Century wine, as it had been for about two centuries. The Civil War ended that market dominance, through damage to the industry by loss of manpower and scarce capital, as well as through revocation of winemaking licenses due to regulatory retribution following the war. Wine production began to recover in the decades after the war through the early 20th Century. However,
Scorza variety Scorza variety In mathematics, a "k"-Scorza variety is a smooth projective variety, of maximal dimension among those whose "k"–1 secant varieties are not the whole of projective space. Scorza varieties were introduced and classified by , who named them after Gaetano Scorza. The special case of 2-Scorza varieties are sometimes called Severi varieties, after Francesco Severi. Zak showed that "k"-Scorza varieties are the projective varieties of the rank 1 matrices of rank "k" simple Jordan algebras. The Severi varieties are the non-singular varieties of dimension "n" (even) in P that can be isomorphically projected to a hyperplane and satisfy "N"=3"n"/2+2.