Over the centuries, there have been different patterns observed in the way human beings do work. In ancient days, humans worked individually to sustain their families; for example, hunting prey for their own families. Later, this changed, and people living in same area started working together toward one goal and sharing benefits equally; for example, cattle breeding, farming, and other tasks where collaboration was necessary for business growth. People started hiring others to execute their work, paying them wages or a salary. This way of working lead to the development of companies or small-scale factories.