Assertion: writer's writing | /r/HasProperty | replaced by the 29th century bc
Facets:
value: for logograms
type: PURPOSE
value: gradually
type: DEGREE
Source sentences:
text: Round-stylus and sharp-stylus writing was gradually replaced by writing using a wedge-shaped stylus (hence the term cuneiform), at first only for logograms, but by the 29th century BC also for phonetic elements.