Query: When was the Siku Quanshu finished?
Context: The Kangxi Emperor sponsored the Peiwen Yunfu, a rhyme dictionary published in 1711, and the Kangxi Dictionary published in 1716, which remains to this day an authoritative reference. The Qianlong Emperor sponsored the largest collection of writings in Chinese history, the Siku Quanshu, completed in 1782. Court painters made new versions of the Song masterpiece, Zhang Zeduan's Along the River During the Qingming Festival whose depiction of a prosperous and happy realm demonstrated the beneficence of the emperor.