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.
LEED CE Hours for Accredited Professionals with Specialty. LEED Accredited Professionals with Specialty must acquire 30 LEED CE hours every two years to maintain their credential. Of those 30 hours, 6 must be specific to LEED concepts.