Two units (equivalent to two years or four semesters) of laboratory science are required (three units are strongly recommended), providing fundamental knowledge in two of the following disciplines: 1  Biology. 2  Chemistry. 3  Physics.
Slave forts were established all along the coast of West Africa, to house captured Africans in holding pens (barracoons) awaiting transport. They were equipped with up to a hundred guns and cannons to defend European interests on the coast, by keeping competitors at bay. There were approximately 80 castles dotted along the slave-trading coast.
Sometimes there was a chute which went down to the moat or a cesspit. The cesspits were emptied by people known as gongfermors.In castles these little toilet rooms were known as garderobes (to 'guard' the 'robes'). They were called that because people kept their clothes in them.ometimes there was a chute which went down to the moat or a cesspit. The cesspits were emptied by people known as gongfermors.In castles these little toilet rooms were known as garderobes (to 'guard' the 'robes'). They were called that because people kept their clothes in them.