Wilberforce was an English politician. He led a movement on how to stop slave trade. He was among who supported the campaign to stop slavery and because of health which was failing he resigned from the parliament and that caused the hearing that the abolish from slavery act was passed in the parliament he died.
Olaudah Equiano was enslaved and that is the most important part why he wanted to abolish slavery. When he was a child he was kidnapped and sold to slavery. He was gathering stones and weeding grass as his work in Virginia during his slave period.
He had his own life story of slavery and that is when he petitioned the abolishment of slavery in parliament where he wrote a book bout his slavery and later a letter to Queen about the abolishment of slavery.
Until a decade later is when slavery ended in Britain but he died before the slavery was over.