Chairman Mao Zedong launched the campaign to reconstruct the country from an agrarian economy into a communist society through the formation of people's communes. Mao decreed increased efforts to multiply grain yields and bring industry to the countryside.
york was an African-American explorer best known for his participation with the Lewis and Clark Expedition. Enslaved by William Clark's father and passed down through a will to William Clark, he performed hard manual labor without pay, but participated as a full member of the expedition.
