Assertion: sweet wine | /r/HasProperty | well-established
Facets:
value: by the early 19th century
type: TEMPORAL
Source sentences:
text: Sweet wines produced from late harvested grapes were well-established as the most valued German wine style by the early 19th century, following the discovery of Spätlese at Schloss Johannisberg in Rheingau in 1775, and the subsequent introduction of the Auslese designation.