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.
The Castillo is a masonry star fort made of a stone called coquina' (Spanish for small shells), made of ancient shells that have bonded together to form a type of stone similar to limestone. Workers were brought in from Havana, Cuba, to construct the fort in addition to Native American laborers.