Assertion: newton | /r/CapableOf | write thought
Facets:
value: upon the african slave trade
type: TEMPORAL
value: to help william wilberforce's campaign
type: PURPOSE
value: in 1787
type: TEMPORAL
Source sentences:
text: In 1787 Newton wrote Thoughts Upon the African Slave Trade to help William Wilberforce's campaign to end the practice—"a business at which my heart now shudders," he wrote.