Requesting That Capital Troops Be Trained in the Zhejiang Cannon募京城軍卒鍊習浙江火炮狀

Jingbirok (A Record of Rebuke and Admonition) Book 12 — The Record of Jinsa A record left by Ryu Seong-ryong, Chief State Councillor, of what he saw with his own eyes after the Imjin War ended. Its title comes from the line, "I rebuke what is past, and take heed against troubles to come." He set down without excuse how the war began and what the court failed to do. His recommendation of Yi Sun-sin, the wrangling with the Ming army, and the suffering the people endured are all recorded as they were.