The Chagatai language was a trade language.
Karl Antonovich Ollo was a Russian figure skater .. Russian. Russian Empire. figure skater. figure skater. Karl Ollo was a three-time champion of Russia in men 's single skating -LRB- in 1910 , 1911 , and 1912 -RRB- and the 1905 bronze medalist .. He lost his life at the front in the First World War .. First World War. First World War