田單守即墨
Tian Dan Defends Jimo
田單者,齊諸田疏屬也。湣王時,單為臨菑市掾,不見知。及燕使樂毅伐破齊,齊湣王出奔,已而保莒城。燕師長驅平齊,而田單走安平,令其宗人盡斷其車軸末而傅鐵籠。已而燕軍攻安平,城壞,齊人走,爭塗,以轊折車敗,為燕所虜,唯田單宗人以鐵籠故得脫,東保即墨。燕既盡降齊城,唯獨莒、即墨不下。燕軍聞齊王在莒,並兵攻之。淖齒既殺湣王於莒,因堅守,距燕軍,數年不下。燕引兵東圍即墨,即墨大夫出與戰,敗死。城中相與推田單,曰:"安平之戰,田單宗人以鐵籠得全,習兵。"立以為將軍,以即墨距燕。
Tian Dan was a distant kinsman of the Tian ruling house of Qi. During the reign of King Min, Tian Dan served as a minor market official in Linzi and was unknown. When Yan sent Yue Yi to invade and shatter Qi, King Min fled and eventually took refuge in the city of Ju. The Yan army drove deep into Qi and overran the country. Tian Dan escaped to Anping, but before doing so he ordered all his clansmen to saw off the protruding ends of their cart axles and cap them with iron sleeves. Soon after, the Yan army attacked Anping. When the walls were breached, the Qi refugees fled, fighting for space on the roads. Their axle-cap pins snapped and their carts broke down, and they were captured by Yan. Only Tian Dan's clansmen, thanks to their iron-capped axles, managed to escape. They fled east and took shelter in Jimo. After Yan had compelled the surrender of every city in Qi, only Ju and Jimo remained unconquered. The Yan army learned that the King of Qi was at Ju and concentrated its forces to attack there. After Nao Chi murdered King Min at Ju, the defenders nonetheless held firm and repelled the Yan army for several years. Yan then shifted its forces east to besiege Jimo. The commandant of Jimo rode out to give battle and was killed. The people inside the city consulted with one another and chose Tian Dan, saying: "At the battle of Anping, Tian Dan's clansmen survived thanks to the iron axle-caps — he understands military matters." They installed him as general, and from Jimo he resisted Yan.
Notes
Tian Dan (田單) was a minor Qi official who rose from obscurity to become one of the most brilliant strategists of the Warring States period. His recovery of all seventy-plus cities of Qi from Yan occupation, culminating in the fire-ox attack at Jimo (c. 279 BC), is one of history's great reversals.
Anping (安平) was a city in Qi, near modern Linzi, Shandong. It fell to the Yan invasion.
The iron axle-cap (鐵籠) was Tian Dan's first stroke of practical ingenuity. Standard axle-caps were wooden and protruded, making them liable to shear off in a traffic jam. Iron caps flush with the wheel prevented this.
Nao Chi (淖齒) was a Chu general sent ostensibly to aid Qi but who instead murdered King Min at Ju, allegedly by hanging him from the city rafters.
