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.
How to Earn LEED Certification. In order for a building project to earn LEED Certification, it must meet certain criteria and goals within the following categories: Location and Transportation - how close the project is to mass transit. Materials and Resources - use locally sourced, sustainable products.