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How did the Imperial Diet change Japanese politics after 1890?
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Meiji Restoration
After the overthrow of the Tokugawa shogunate, the Meiji emperor became the formal head of a new imperial government under whose reign Japan was transformed from an isolated feudal society into a modern, industrialized global power.
The establishment of the Imperial Diet in 1890 fundamentally altered Japanese politics by creating a formal, albeit constrained, arena for political dissent and legislative debate under the Meiji Constitution.1
Key changes included:
- Legislative and Budgetary Oversight: While the executive branch retained significant power, the government required Diet approval for legislation and budgets. If the Diet rejected a budget, the government was limited to using the previous year's figures, forcing a degree of compromise.21
- Emergence of Political Parties: The Diet provided a platform for political parties, such as the Liberal Party and the Progressive Party, to challenge the Meiji oligarchy. Although early cabinets attempted to remain independent of party influence, they were eventually forced to form alliances with party leaders to secure support in the lower house.13
- Institutional Tension: The system created a persistent power struggle between the elected House of Representatives and the appointed House of Peers, as well as the military and bureaucracy. This often led to political instability, corruption, and frequent government reliance on coercion or compromise to function.23
- Expansion of Representation: Over time, the Diet became a vehicle for democratic advancement, notably through the gradual lowering of tax qualifications for voting, culminating in the implementation of universal manhood suffrage in 1925.13