Earl of Chatham Earl of Chatham Earl of Chatham, in the County of Kent, was a title in the Peerage of Great Britain. It was created in 1766 for William Pitt the Elder on his appointment as Lord Privy Seal, along with the subsidiary title Viscount Pitt, of Burton Pynsent in the County of Somerset, also in the Peerage of Great Britain. The first Earl's wife, the former Lady Hester Grenville, daughter of the 1st Countess Temple, had earlier been created Baroness Chatham, of Chatham in the County of Kent, also in the Peerage of Great Britain, in 1761, as at that stage
Chatham Islands landed on 29 November 1791, claimed possession for Great Britain and named the islands after the First Lord of the Admiralty, John Pitt, 2nd Earl of Chatham. A relative of his, Thomas Pitt, was a member of the Vancouver Expedition. Sealers and whalers soon started hunting in the surrounding ocean with the islands as their base. It is estimated that 10 to 20 percent of the indigenous Moriori soon died from diseases introduced by foreigners. The sealing and whaling industries ceased activities about 1861, while fishing remained as a major economic activity. Chatham Islands date their anniversary on 29 November,