Drag the events into chronological order from top to bottom.
= China and Great Britain clash during the Opium War.
= The Treaty of Nanjing gives Hong Kong to Great Britain.
= Spanish and Portuguese traders introduce maize and peanuts to China.
=
The Boxer Rebellion fails to end western influence in China.
= The Taiping Rebellion ends, resulting in the deaths of millions of Chinese people.
= The United States convinces other nations to accept an Open Door Policy toward China.