Dmitri Mendeleev presented his periodic table of the elements based on increasing atomic weight on March 6, 1869, in a presentation to the Russian Chemical Society. While Mendeleev's table was the first to gain some acceptance in the scientific community, it was not the first table of its kind.
In the end, the British sale of opium was used as means for  obtaining more land and trading rights from the Chinese, leading to  the devastation of the Chinese government and economy which is why  The First Opium War will be remembered in history as the time when  China was ultimately betrayed by the British.
The Treaty of Nanjing ended the First Opim War in 1842, Britain made china pay a huge indemnity (payment for losses in the war). Britain also gained Hong Kong.It gave the British rights to ports and low tariffs.he treaty of nanjing was signed in 1842 and ended the First opium war between China and Britain which of these was a result of the treaty? The treaty of Nanking was signed in 1842 and ended the First opium  war between China and Britain and its results included the  destruction of the Chinese navy.