Physical capital refers to assets, such as building, machinery, and vehicles, which are owned and employed by an organisation. Physical capital constitutes one of the factors of production other than land and labour. The assets constitute fixed capital means that they are not consumed in the process of production. Human capital is an intangible asset not listed on a company's balance sheet and includes things like an employee's experience and skills. Since all labor is not considered equal, employers can improve human capital by investing in the training, education, and benefits of their employees. Therefore knowledge and experience are not physical capital they are human capital, and tools, buildings, and sewing machines are physical capital.
During the era of European settlement between 1600 and 1820, most Africans who came to the Americas arrived as slaves. Africans began being imported from Africa especially the western part of Africa as slaves during this time and were forced to work by the Europeans in their plantations.