Assertion: mitotic spindle | /r/HasProperty | described by walter flemming
Facets:
value: in the 1880s.7
type: TEMPORAL
Source sentences:
text: Mitotic spindles were first described by Walter Flemming in the 1880s.7 Even though he worked with cells subjected to rather crude fixation and staining methods, he was able to discern the filamentous nature of the spindle, and the splitting of metaphase chromosomes into two at the onset of anaphase.