The district was madein 1994 by joining the old districts Gadebusch , GrevesmÃ 1\/4 hlen and Wismar , and also smaller parts of the districts Sternberg and Schwerin-Land . The district was created in 1994 by merging the previous districts Gadebusch , GrevesmÃ 1\/4 hlen and Wismar , and also smaller parts of the districts Sternberg and Schwerin-Land .