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Battle of Qatwan
The Qara Khitai khan Yelu Dashi, last of the Khitan nobility, destroyed a Seljuk army under Sultan Sanjar on the Qatwan steppe north of Samarkand. News traveled west and curdled into the Prester John legend. The Seljuk eastern frontier collapsed for good, and the Central Asian cities of Bukhara and Samarkand passed under the rule of Buddhist overlords for the first time in centuries.
Treaty of Shaoxing
Song China formally accepted the Huai River as its border with the Jurchen Jin and agreed to annual tribute in silver and silk. The deal turned the loyalist general Yue Fei into an obstacle; he was executed by the court on trumped-up charges weeks later. The treaty secured peace at the price of national humiliation, and Yue Fei's death became the defining martyrdom of Chinese patriotic tradition.
Battle of Lincoln
Empress Matilda's Angevin forces captured King Stephen in a muddy rout outside Lincoln Castle. For a few months Matilda was effectively queen of England, though never crowned, before the Londoners chased her out of Westminster for her haughtiness. Her brief ascendancy collapsed when she demanded a tax from London's citizens and insulted their delegation, demonstrating that military victory alone could not secure the English throne without political finesse.
Rout of Winchester
After Empress Matilda's summer of supremacy, her half-brother Robert of Gloucester was captured by King Stephen's queen's forces during a retreat through Winchester. Matilda exchanged Robert for Stephen. The Anarchy settled into a grinding stalemate that neither side could break for another twelve years, reducing much of southern England to a landscape of unlicensed castles, burned villages, and extorted peasants.