AP World History 101. Feudalism and the Crusades Video. Feudalism developed in Western Europe at around 800 C.E. from the remnants of the Western Roman Empire. As a result of central authority being unable to perform its functions and prevent the rise of local powers, this decentralized organization formed.
LEED, which stands for Leadership in Energy and Environmental Design, is a certification program focused primarily on new, commercial-building projects and based upon a points system. The more points you earn, the higher your rating.
What is a Plastic Surgeon? A certification by the Board of Plastic Surgery; practitioners deal with the repair and reconstruction of defects of form and function of the skin and its underlying systems, with emphasis on the head and neck, the upper and lower limbs, the breast, and the external genitalia.