Poetry ClassTangshan #10 Middle School. April 1, 1972. Class is studying "Snow," a poem by Mao Zedong, written in 1936. First stanza: North country scene/A hundred leagues locked in ice/A thousand leagues of whirling snow./Both sides of the Great Wall/One single white. On the top of blackboard, poster of Mao in the middle and Mao's quotations on both sides.