Thomas Allom travelled widely but is not known to have visited China, and his views derive from the work of others. The last of the present sketches is credited to a sketch made on the spot by Captain Stoddart,RN. Many of Allom's views derive from William Alexander, the Daniells, amongst others, and from the work of other officers who were in China during the Opium War. The war ended in 1842, the Treaty of Nanking ceding Hong Kong to the British as indemnity and opening up China to international trade and diplomacy. Wright's four volumes, published between 1843 and 1847, cashed in on the renewed curiosity about China in the aftermath of the war. Wright is not known to have travelled to China, and, like Allom, borrowed heavily for his narrative.