On February 24, 1881 the Treaty of Saint Petersburg, also known as Treaty of Ili, was signed
The Treaty was meant to border demarcation between Russia and China in the north-west of the Qing Empire, which sought to maintain control over the Ili region. Under this treaty the major part of the Ily region (around 80%) was given to the Qing Empire. Nevertheless, a part of the region went to the Russian Empire, making it possible for locals to become a Russian national.
- Address: St. Petersburg, Petrovskaya emb.