Yermak was therefore praised and entertained and graciously told to go ahead, Ivan had neither men nor money to spare, but he was quite willing that these adventurers should despoil the Asiatics, instead of holding up Russian travelers and traders. Ivan gave him a suit of armor as a token of good will. After Yermak's return to Siberia, he was surprised by the natives and drowned by the weight of his armor as he was trying to escape by swimming the Irtish. (1584.) Other Cossacks had heard of his success and followed his example. In 1587, Tobolsk was founded on the Irtish, ten miles below Sibir. There was little or no communication between Siberia and Moscow, (p. 261) owing to the distance separating them, and the successors of Ivan had ample trouble on their hands. It was, therefore, left to the Cossacks to make such explorations and conquests as they could. In 1619, Tomsk was founded. Farther and farther did the Cossacks advance among the isolated tribes. In 1632, a log fort was built where Yakoutsk now stands, and six years later they gazed upon the broad waters of the Pacific and planted the czar's flag on the shore of the Sea of Okhotsk. It was a congenial occupation for the Cossack, to roam where he pleased and to take what suited his fancy, and he did not lack either the skill or the courage needed by the explorer. In 1639, a party of Cossacks under Max Perfirief, discovered the Upper Amoor, and heard tales of such vast wealth that they hastened to Yakoutsk and placed their discovery before Peter Petrovitch, the first Russian Governor. Men and money were scarce, but the governor, after many efforts managed to collect 132 men whom he placed in command of Vassili Poyarkof, with instructions to do the best he could. The party started on the 15th of July, 1643, and followed the usual course with the natives with the result that he returned to Yakoutsk in June 1646, having lost most of his men in attacks by infuriated and outraged natives, but in possession of a fund of information, and some skins as tribute. During the reign of Alexis Michaelovitch (1645-1676), explorations of the Amoor regions were pursued vigorously. A young officer of considerable wealth, named Khabarof, offered to conduct an (p. 262) expedition at his own expense. This was gladly accepted, and he left Yakoutsk in 1649. He reached the Amoor and formed a line of forts, and met a small party among whom was the khan, who asked what his object was. Khabarof replied that he had come to trade, but that the czar would probably take the khan under his powerful protection in return for a small annual tribute. The khan did not answer, and Khabarof after burning most of the forts and leaving some of his men in another, returned to Yakoutsk to report.