Chatham University M. Laughlin Jr. and James Rea. It was renamed Pennsylvania College for Women in 1890, and as Chatham College in 1955. The name served to honor William Pitt, 1st Earl of Chatham and namesake of the City of Pittsburgh. The school gained university status from the Pennsylvania Department of Education on April 23, 2007, and publicly announced its new status on 2007-05-01, changing its name to Chatham University. With elements designed for the original Andrew Mellon estate by the Olmsted Brothers, the Shadyside Campus was designated an arboretum in 1998 by the American Association of Botanical Gardens and Arboreta. It
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