Yermak (1898 icebreaker)
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Yermak was a Russian and later Soviet icebreaker. It was the first polar icebreaker in the world, having a strengthened hull shaped to ride over and crush pack ice.
Yermak on the Baltic Sea before 1917
Yermak assisting the stranded warship Apraxin, 1900
1976 Soviet postage stamp honoring the Yermak
The first photographic album on Ice-breaker "Ermack"
Stepan Makarov
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Stepan Osipovich Makarov was a Russian vice-admiral, commander in the Imperial Russian Navy, oceanographer, member of the Russian Academy of Sciences, and author of several books. He was a pioneer of
Yermak (1898 icebreaker)
…to the destination, but was shipwrecked before obtaining success. Yermak was built for the Imperial Russian Navy under the supervision of vice-admiral S. O. Makarov by the members of his commission, which included D. I. Mendeleev, engineers N. I. Yankovsky and R. I. Runeberg, admiral F. F. Wrangel, among others…
Admiral Stepan Makarov, in the National Library of Norway
Makarov's birthplace in Mykolaiv
SS Baikal in service on Lake Baikal