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.
There are four levels of LEED certification: Certified; Silver; Gold; Platinum; There are one hundred possible points when you have your building inspected for certification. If you get between 40 and 49 points, youâll be LEED Certified. If you get between 50 and 59 points, youâll be LEED Silver Certified.