October 9 is Leif Erikson Day, honoring the Viking (or Norse) explorer who sailed his crew to the first recorded landing of Europeans in North America around the year 1000.

10月9日是列夫·埃里克森之日（Leif Erikson Day），这个日子是纪念大约在公元1000年左右，维京（或者是挪威）开拓者带着他的船员成为第一个有史以来登陆到北美的欧洲人。

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Here is one of the Viking Islands. The plain lowland at sea level is their habitat. They grow in altitude of 2-20 meters from sea level, all day full direct sunlight.

此地就是具有维京猪的岛屿之一，他们的栖地位于约海拔2 ~ 20公尺的低地，接受全天的日光直射。

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Successive cold years drove the Vikings out of Greenland, where many of the Medieval Viking villages remain buried under snow and ice to this day.

FORBES: In Which We Gently Correct James Taylor

Dr. LEVINE: Well, I think the key aspect of Viking was a very strong, dedicated team of scientists and engineers and project managers that lived, 24 hours a day, the Viking mission.

NPR: Revisiting the Viking Missions to Mars