Assertion: steam distillation | /r/HasProperty | invented by avicenna
Facets:
value: for producing essential oils
type: PURPOSE
value: in the early 11th century
type: TEMPORAL
Source sentences:
text: Petroleum was first distilled by the Persian alchemist Muhammad ibn Zakarīya Rāzi (Rhazes) in the 9th century, for producing kerosene, while steam distillation was invented by Avicenna in the early 11th century, for producing essential oils.
text: Petroleum was first distilled by another Muslim chemist al-Razi (Rhazes) in the 9th century, for producing kerosene, while steam distillation was invented by Avicenna in the early 11th century, for producing essential oils.
text: while [[steam distillation]] was invented by [[Avicenna]] in the early [[11th century]].<ref>A. Wolf, G. A. Bray, B. M. Popkin (2007).