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.
Leading GREEN - LEEDÂ® Training and Consulting. LeadingGREEN has been providing LEED Training for GA and AP to individuals and groups in the green building industry since 2009. We organize our own classes as well as teach in-house to various firms with class sizes ranging from 20 to 80.