This is the agreement signed on January 30th, 1819 by His Highness the Sultan Hussein Mohammed Shah granting the British the right to establish a trading port in Singapore. “One Hundred Years of Singapore, Being Some Account of the Capital of the Straits Settlements from Its Foundation by Sir Stamford Raffles on the 6th February 1819 to the 6th February 1919. Makepeace, Water. London, J. Murray, 1921.