Yiguandao / I-Kuan Tao (traditional Chinese: 一貫道; simplified Chinese: 一贯道; pinyin: Yīguàn Dào; Wade–Giles: I1-Kuan4 Tao4), meaning the Consistent Way or Persistent Way, is a Chinese salvationist religious sect that emerged in the late 19th century, in Shandong, to become China's most important redemptive society in the 1930s and 1940s, especially during the Japanese invasion. In the 1930s, Yiguandao spread rapidly throughout China led by Zhang Tianran, who is the eighteenth patriarch of the Latter Far East Tao Lineage, and Sun Suzhen, the first matriarch of the Lineage.