What was the path or journey of the slave ships who controlled the ships trades? How did legal slavery end?

The owners of slave ships held as many enslaved people as possible by cramming, chaining, and selectively grouping slaves to maximize space and make travel more profitable. Slaves on board were underfed and treated brutally causing many to die before even arriving at their destination; dead or dying slaves were dumped overboard. These people were not treated as human, living like animals throughout their long voyage to the New World. It took an average of one to two months to complete the journey. The enslaved people were naked and shackled together with several different types of chains, stored on the floor beneath bunks with little to no room to move due to the cramped conditions. Some captains would assign Slave Guardians to watch over and keep the other slaves in check. They spent a large portion of time pinned to floorboards which would wear skin on their elbows down to the bone. Firsthand accounts from former slaves, such as Olaudah Equiano, describe the horrific conditions that enslaved people were

1. The Triangular trade

2. The sailor

3. The Emancipation Proclamation