Assertion: bald eagle's number | /r/CapableOf | increase after the banning of ddt
Facets:
value: steadily
type: MANNER
value: in 1972
type: TEMPORAL
Source sentences:
text: After the banning of DDT in 1972 (US) and a nationwide re-introduction effort in the 1970’s and 1980’s, the number of bald eagle nesting territories in Kentucky has steadily increased (Table 1).