From 100 years of Bauhaus to 350 years since Rembrandt’s death, a host of landmark art events and exhibitions are open around Europe this year.John Ruskin 200th EnglandThis year is also the bicentenary（200 周年纪念） of the birth of John Ruskin, the art critic, writer and reformer. There are exhibitions throughout the year at Brantwood, his former home in Cumbria, on topics from his clothes to his interest in geology and his legacy in Japan. On Ruskin’s birthday, 8 February, there is a free public lecture on his love of trees at Oxford University Museum of Natural History and an eve