It was introduced in Roman criminal law by emperor Antoninus Pius.

Entity and relation annotations:
id: 0
type: entity
value: text: Roman criminal law
labels: <Regulation>
id: 1
type: entity
value: text: Antoninus Pius
labels: <Person>
id: 2
type: entity
value: text: emperor
labels: <Title>
type: relation
to_id: 2
labels: Person:holds_title:Title
from_id: 1