Russia obtains territory at the mouth of River Amur. They continue
to expand their empire on the Pacific coast until 1860.
Citation:
Editors. "Russia obtains territory at mouth of River Amur".
The Literary Encyclopedia. First published 30 December 2011
[http://www.litencyc.com/php/stopics.php?rec=true&UID=18277, accessed 20 May 2013.]