By the early 1890s, Korea's peasants had had enough. Corrupt local officials were squeezing them with illegal taxes, and a new religious movement called Donghak was giving their anger a shared language and organisation.
Donghak taught that all people carried divinity within them, and it rejected foreign influence — both Western ('Seohak', Catholic) ideas and growing Japanese economic power. It gave scattered local grievances a national shape.
Cause & consequence: from local anger to national crisis: A local dispute over corrupt taxation in Gobu county (1894) triggered the Donghak Peasant Revolution. Peasant armies under Jeon Bong-jun won real victories, capturing the city of Jeonju in May 1894. This forced Korea's own government to ask for outside military help — the decision that turned a domestic revolt into an international war.
Here is the fatal chain reaction: the Korean court, panicking, asked its traditional overlord Qing China for troops to crush the rebels. China sent soldiers under the 1885 Convention of Tianjin, which said Japan must be told and could send its own troops too.
Japan used this as its opening. Tokyo poured far more troops into Korea than the situation needed, seized the royal palace in Seoul in July 1894, and installed a pro-Japanese government — all before a shot had even been fired between China and Japan.
- Jeon Bong-jun — Donghak peasant leader; his army's early victories forced the Korean court to call in Qing troops.
- Convention of Tianjin (1885) — Sino-Japanese agreement that either power could send troops to Korea if the other did; the legal trigger for both armies arriving in 1894.
- Seoul palace coup, July 1894 — Japanese troops seized the royal palace and set up a puppet cabinet before war was even declared.
Debate to weigh: who really started the war?: A popular claim is 'the Donghak Revolution caused the First Sino-Japanese War'. A strong essay complicates this: the revolt was the trigger, but Japan had been planning to challenge Chinese influence in Korea for years (military reforms since the 1880s, economic penetration via trade). Argue that Donghak gave Japan the opportunity, not the sole cause.
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War between China and Japan was formally declared in August 1894, although fighting (including a naval attack) had already begun. It went badly for China almost everywhere.
Japan's modernised, Western-style army and navy defeated Qing forces on land at Pyongyang and at sea at the Yalu River. By early 1895 Japan had also taken Port Arthur and threatened the Chinese mainland directly. It was a shock: China, the traditional regional power, had been beaten decisively by a country the world still saw as the junior partner in East Asia.
| Term of the Treaty of Shimonoseki (April 1895) | What it meant |
|---|---|
| China recognised Korea's 'full and complete independence' | Ended over 500 years of Korea's status as a Qing tributary state — but really cleared the way for Japan to dominate Korea instead |
| China ceded Taiwan and the Liaodong Peninsula to Japan | Japan gained territory on the Chinese mainland itself, alarming other powers |
| China paid a huge war indemnity (200 million taels of silver) | Crippled Qing finances and deepened the 'self-strengthening' crisis in China |
| China opened more treaty ports to Japanese trade | Extended Japan's economic reach into China, mirroring earlier Western 'unequal treaties' |
Significance: the balance of power flips: Shimonoseki is one of the most important turning points in the whole regional study. It ended Chinese influence over Korea and announced Japan as a serious imperial power. Days after the treaty, Russia, France and Germany forced Japan to give back the Liaodong Peninsula (the Triple Intervention) — a humiliation that fed Japanese resentment and helped push Japan towards war with Russia a decade later.
For Korea, 'independence' from China was not the freedom it sounds like. With its old protector gone, Korea was now exposed directly to Japanese pressure — and, as you'll see in the next section, to Russian rivalry too.
- Treaty of Shimonoseki, April 1895 — ended the First Sino-Japanese War; ended Chinese suzerainty over Korea.
- Triple Intervention — Russia, France, Germany forced Japan to return Liaodong to China, straining Russo-Japanese relations.
- Tributary system — the traditional relationship where Korea recognised Chinese overlordship in exchange for autonomy in its own affairs; Shimonoseki formally ended it.
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While the war raged, the Japanese-backed government in Seoul pushed through a sweeping package of changes from 1894–96 known as the Gabo Reforms. On paper, they modernised Korea fast.
Social change
Abolished the rigid yangban class system and slavery, and legally ended discrimination based on social status.
Political change
Separated the royal household from state administration and created a cabinet-style government with modern ministries.
Fiscal & legal change
Unified the currency, reformed taxation, and introduced a new modern legal and police system.
Gabo = Good ideas, Bad timing — real modernisation, but designed and enforced by Japan's occupying advisers.
Debate: reform or foreign control dressed up as reform?: This is a classic 'to what extent' debate. One side: the Gabo Reforms were genuinely progressive, ending centuries of rigid social hierarchy and dragging Korea's government into the modern age. The other side: they were imposed by a Japanese-installed cabinet under military occupation, designed to weaken the old Korean elite and clear the way for Japanese control — not real Korean self-determination. A strong essay uses both.
Then came a tragedy that hardened Korean anger at Japan. Queen Min (Empress Myeongseong), who favoured Russia as a counterweight to Japan, was assassinated by Japanese agents inside the royal palace in October 1895 — a brazen act that shocked international observers and humiliated the Korean court.
Fearing for his life, King Gojong fled to the Russian legation in February 1896, ruling from there for about a year (the Korea under Russian protection episode) while Russian influence temporarily eclipsed Japan's.
1897: Korea declares itself an empire: In October 1897, Gojong returned from the legation and proclaimed the Korean Empire, taking the title of Emperor. This was a deliberate symbolic move — putting Korea on equal footing with China and Japan (both already empires) and asserting that Korea would no longer be anyone's junior partner or tributary.
- Gwangmu Reforms (1897 onward) — the Korean Empire's own reform programme: modernised the military, built railways and telegraph lines, reorganised land ownership with modern surveys, and expanded schools — all framed as 'Korean tradition as the base, Western technology as the tool', unlike the Japanese-dictated Gabo Reforms.
- Independence Club (1896–98) — a reform movement of officials, intellectuals and citizens, publishing Korea's first private newspaper and holding public assemblies calling for constitutional government, an end to foreign interference, and modernisation from within.
- Its suppression — Emperor Gojong, wary of the Club's growing radicalism and pressure for power-sharing, banned it in late 1898 — a sign that the new Korean Empire wanted a stronger monarchy, not democracy.
Perspectives: was the Korean Empire a real revival?: Argument FOR genuine revival: Gwangmu built real infrastructure and institutions, and the Independence Club showed a Korean public actively debating its own future — this was not a passive colony. Argument AGAINST: the reforms came too late and were too underfunded to counter Japan's military and financial power, and the Emperor's own suppression of the Independence Club weakened Korea's best chance at broad-based reform from within.