A nearly intact medieval shipwreck has been hauled from the frigid waters of a Dutch river.
The boat was likely deliberately sunk by maritime engineers more than 600 years ago in an effort to alter the flow of the Ijssel River, an offshoot of the mighty Rhine River that flows through six European countries. The trading ship sailed at a time when the Hanseatic League, a group of guilds that fostered trade across Europe, dominated the seas.
"The fact that we were able to raise the Ijssel cog [a type of wooden vessel] in its entirety and in one attempt is a fantastic achievement by the entire team," lead maritime archaeologist Wouter Waldus said in a statement. "The shipwreck can become a symbol of our rich maritime history, and I fully expect many people, both young and old, to be amazed by and start enjoying this

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http://dansino..com.ng/2016/02/600-years-after-medieval-shipwreck.html