All during the colonial period tobacco was classified into two main varieties, Oronoco and sweet-scented. Oronoco had a large porous pointed leaf and was strong in taste. Sweet-scented was milder, the leaf was rounder and the fibers were finer. We are also told that sweet-scented grew mostly in the lower parts of Virginia, along the York and James rivers, and later on the Rappahannock and on the southside of the Potomac. Oronoco was generally planted up the Chesapeake Bay area and in the back settlements on the strong land along all the rivers. Oronoco is thought to have originated in the vicinity of the Orinoco River valley in Venezuela. After being brought to a different environment and climate in Virginia, various varieties or strains of Oronoco were developed or came about naturally. In the late 1600's a very fair and bright large Oronoco, Prior, and Kite's Foot were mentioned. As the years passed planters came to distinguish other varieties such as Hudson, Frederick, Thick-Joint, Shoe-string, Thickset, Blue Pryor, Medley Pryor, White Stem, Townsend, Long Green, Little Frederic, and Browne Oronoco. A type of tobacco referred to locally as "yellow", had been growing on the poor, thin, and sandy soils in and around Pittsylvania County, Virginia, and Caswell County, North Carolina since the early 1820's. It was just another one of the many local varieties and attracted little attention until a very lucky accident occurred in 1839. A Negro slave on the Slade farm in Caswell County, North Carolina, fell asleep while fire-curing tobacco. Upon awakening, he quickly piled some dry wood on the dying embers; the sudden drying heat from the revived fires produced a profound effect--this particular barn of tobacco cured a bright yellow. This accident produced a curing technique that soon became known throughout the surrounding area in Virginia and North Carolina. This tobacco became known as "Bright-Tobacco", and this area the "Bright-Tobacco Belt". The many variations were due to the different environments, cultural practices, methods of curing and breeding; and each of these variations was given a name because of some particular quality it possessed, or was given the name of a person or place. The difference in the composition of the "Bright-Tobacco" grown in the poor sandy soil, such as that found in Pittsylvania County, caused the tobacco to cure bright. This so-called new type of tobacco was of the old Virginia Oronoco and if grown on heavier soils, it produced a much heavier bodied tobacco and would not make the same response when flue-cured. Only the tobacco grown in the soils such as that in the "Bright-Tobacco Belt" cured bright, which indicates that it was the soil and not the variety that caused the tobacco to be bright when cured.