During the Warring States period, King Wei of Qi ascended the throne before turning thirty. "Young and unaware of sorrow," he spent his days drinking and reveling, neglecting state affairs, often carousing through the night. By the time court convened, he had just fallen asleep. Seeing his incompetence, other states seized the opportunity to attack, leaving Qi on the brink of collapse.
The ministers were all anxious, but none dared enter the palace to remonstrate
One day, the advisor Chunyu Kun entered the palace and asked King Qi, "Your Majesty, there is a great bird in the kingdom that has lived in your palace for three years without flying or singing. Do you know why?" The king, realizing Chunyu was referring to him, replied, "That bird may not fly, but when it does, it will soar to the heavens; it may not sing, but when it does, it will startle everyone."
Chunyu Kun fell silent, watching intently to see what he would do next.
The King of Qi, true to his word, set aside his wine cup and led his ministers on an inspection tour across the land.
When King Wei of Qi arrived at Jimo (present-day southeast Pingdu, Shandong), he saw fertile fields and a contented populace, which pleased him greatly. Summoning the local governor, he declared, "Ever since you took office, people have spoken ill of you to me daily. Now I see you are a steadfast official who avoids crooked paths. I grant you the title of Marquis of Ten Thousand Households."
Later, King Wei inspected the A region. It was worlds apart from Jimo—weeds overran the fields, and the people suffered terribly. He summoned the magistrate of A and rebuked him, "You've let this place fall into ruin, yet I hear nothing but praise for you every day. You must have bribed them, haven't you?"
The King of Qi immediately ordered the magistrate of A bound and brought back to the capital, then summoned the governors of all 72 counties—the heads of large counties and the chiefs of small ones—to appear at court to await rewards and punishments.
Upon returning to the court, King Wei of Qi rewarded the deserving and punished the guilty, ultimately ordering the Grand Master of A and those who had spoken well of him to be boiled alive in a cauldron of oil.
From then on, the state of Qi was united as one, and its people lived in peace
The atmosphere of Qi was greatly transformed, and neighboring states no longer dared to invade. Qi enjoyed stability for over twenty years. King Wei of Qi truly achieved "a single cry that startles everyone." Later, people used this idiom to describe someone who, usually unknown, suddenly accomplishes something astonishing.
Source: *Records of the Grand Historian*, "Biography of the Humorists"
Meaning of the Idiom: Later, the Chinese idiom "一鸣惊人" came to describe how someone who is usually unknown suddenly accomplishes something astonishing.