Assertion: symbol | /r/HasAspect | its roots
Facets:
value: in the classical antiquity
type: TEMPORAL
Source sentences:
text: Scholars such as Pierre Vinken and Martin Kemp have argued that the symbol has its roots in the writings of Galen and the philosopher Aristotle, who described the human heart as having three chambers with a small dent in the middle.
text: Both symbols have their roots in the classical antiquity, and both signs were used throughout the Middle Ages as a representation for the Latin word et ("and").
text: It has its roots in German anti-fascist movements of the 1930s.