Why did the Vikings need to raid and pillage other settlements?

Their home in Scandinavia was mean't for farming, but their farmlands were getting colder, so they had to leave their homeland. They put together a large group of people including woman. They started to raid small lands to collect loot and leave.

They wanted to stay in one place this time, so they raided England  aprrox. in 793 A.D. to stay forever. England has rich luscious greens while Scandinavia was cold and empty.

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how did justinian contribute to the byzantine empire?

one famous byzantine emperor was justinian i. justinian ruled from ad 527 to 565. belisarius was the commander who led these armies in an attempt to win back the old western roman empire. the war effort to take back the western part of the empire forced justinian to raise taxes on the people of the byzantine empire.

explanation:

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