Assertion: earthworm's role | /r/HasProperty | recognized by charles darwin
Facets:
value: in 1837
type: TEMPORAL
Source sentences:
text: The role of soil animals in soil formation was first recognized by Charles Darwin (1838) in 1837 and well exemplified in his last book The Formation of Vegetable Mould Through the Action of Worms, With Observations on Their Habits (Darwin, 1881; Feller et al., 2003).