Commercial treaty till the middle of the century, apparently with irresistible support, they suddenly collapsed under the strain of a season of exceptionally short crops. Both their continued maintenance and their final sudden abolition are in some respects divergent from the general course of British tariff history. Commercial treaty A commercial treaty is a formal agreement between states for the purpose of establishing mutual rights and regulating conditions of trade. It is a bilateral act whereby definite arrangements are entered into by each contracting party towards the other—not mere concessions. For example, the Methuen Treaty was a commercial treaty between Portugal and
Treaty Between Great Britain and Lagos, 1 January 1852 slave trading port. In 1851 and with pressure from liberated slaves who now wielded political and business influence, Britain intervened in Lagos in what is now known as the Bombardment of Lagos (or Reduction of Lagos). The British installed Oba Akitoye, ousted Oba Kosoko, and signed a treaty on January 1, 1852 between Great Britain and Lagos that outlawed the slave trade, ushering in the consular period in Lagos' history, wherein Britain provided military protection to Lagos. The text of the Lagos Treaty of 1852 is transcribed below: "Commodore Henry William Bruce, Commander-in-Chief of Her Majesty’s ships and vessels on