Assertion: symbol's letter | /r/HasProperty | known and very early way
Facets:
value: well
type: DEGREE
Source sentences:
text: The first two letters of the name of Jesus in Greek, iota (Ι) and eta (Η), sometime superimposed one on the other, or the numeric value 18 of ΙΗ in Greek, was a well known and very early way to represent Christ.