Occurrence of Attributes in Original Text

The text related to the cultural heritage 'State Historical and Cultural Park “Ancient Merv”' has mentioned 'Russians' in the following places:
Occurrence Sentence Text Source
Khiva contested the advance of the Tekkes, but ultimately, about 1856, the latter became the sovereign power in the country, and remained so until the Russians occupied the oasis in 1884.
By 1868 the Russians had taken most of Russian Central Asia except Turkmenistan.
The Russians occupied the oasis of Tejen, eighty miles to the west.