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 rail suggests parallel evolution after separate colonisation of the Chatham Islands. Chatham rail The Chatham rail ("Cabalus modestus") is an extinct flightless species of bird in the family Rallidae. It was endemic to New Zealand. Genetic similarity with "Gallirallus dieffenbachii" is why many view this species as part of the genus "Gallirallus." "Cabalus modestus" was endemic to Chatham, Mangere and Pitt Islands, New Zealand. It was first discovered on Mangere in 1871, and 26 specimens collected there are known from museum collections. It became extinct on the island between 1896 and 1900. The species is also known from 19th century bones