Answer:
Human habitation of Mumbai existed since the Stone Age, the Kolis and Aagri (a Marathi fishing community) were the earliest known settlers of the islands. The Maurya Empire gained control of the islands during the 3rd century BCE and transformed it into a centre of Buddhist culture and religion.
The antislavery movement raised and grew because people kept finding reasons for why slavery is bad. This eventually led to conflict between people against slavery and people for slavery. Another reason why the antislavery movement raised and grew was because slavery has become less useful overtime, as we have machines.