Chatham House Chatham House The Royal Institute of International Affairs, commonly known as Chatham House, is a not-for-profit and non-governmental organisation based in London whose mission is to analyse and promote the understanding of major international issues and current affairs. It is the originator of the Chatham House Rule and takes its name from the building where it is based, a Grade I listed 18th-century house in St James's Square, designed in part by Henry Flitcroft and occupied by three British prime ministers, including William Pitt, 1st Earl of Chatham. In the University of Pennsylvania’s rankings (announced in January 2017) for their
Chatham Township, New Jersey that had taken its name and adopted the village form of government established in the United States for the new state of New Jersey. Shortly thereafter, Chatham adopted the borough form of government on March 1, 1897. Florham Park was formed from portions of the township on March 20, 1899. Most of Green Village has always been within the township's jurisdiction. In 1773, the village "John Day's Bridge", a community governed by the English township of Morris since its settlement in 1710, was renamed as, "Chatham", in honor of Sir William Pitt, a British prime minister and the first Earl