the north to Singleton in the south, and east inland to The Lakes. Outside of the central business district, important urban centres within the metropolitan area include Armadale, Fremantle, Joondalup, Midland, and Rockingham. Most of those were originally established as separate settlements and retained a distinct identity after being subsumed into the wider metropolitan area. Mandurah, Western Australia's second-largest city, forms a conurbation with Perth along the coast, though for most purposes it is still considered a separate city. Toponymy The name Perth was selected in recognition of Perth, Scotland as the birthplace of the Secretary of State for War and the Colonies, and Member for Perthshire in the British House of Commons, Sir George Murray. It was included in Stirling's proclamation of the colony, read in Fremantle on 18 June 1829, which ended "Given under my hand and Seal at Perth this 18th Day of June 1829. James Stirling Lieutenant Governor". The only contemporary information on the source of the name comes from Charles Fremantle's diary entry for 12 August 1829, which records that they "named the town Perth according to the wishes of Sir George Murray". There is no equivalent Noongar terminology for the Perth metropolitan area; it is sited primarily on Whadjuk country, which extends approximately north to Two Rocks, south to Mandurah, and east as far as York. Boorloo (also transcribed as Boorlo or Burrell) referred to Point Fraser in East Perth, and means "big swamp", which describes the whole chain of lakes where the CBD and Northbridge are sited. However Boorloo is also used to denote the central business district, the local government area, or the capital city in general. History Prehistory Archaeological evidence demonstrates that the Noongar people have inhabited the Perth area for at least 45,000 years. Noongar country encompasses the southwest corner of Western Australia. The wetlands on the Swan Coastal Plain were particularly important to them, both spiritually (featuring in local mythology) and as a source of food. The present-day location of the CBD forms part of the traditional territory of the Mooro, a Noongar clan, who at the time of British settlement had Yellagonga as their leader. The Mooro was one of several Noongar clans based around the Swan River, known collectively as the Whadjuk. The Whadjuk themselves were one of a larger group of fourteen tribes that formed the south-west socio-linguistic block known as the Noongar (meaning "the people"