Why do some nations have dozens of official languages while others have none at all?

Nature · Published 30 September 2026 Swipe more like this →

In short: An official language is more than a linguistic label; it is a government tool for administration, education, and legal authority. While some countries like Bolivia recognize 37 languages to empower diverse groups, others, including the United Kingdom and Australia, operate without any officially designated national language at the state level.

The concept of an official language serves as a mechanism for governance, dictating the medium for courts, schools, and bureaucracy. Globally, 178 countries recognize at least one official language, though the approach varies wildly. Some nations, such as Nigeria, utilize endoglossic languages—indigenous tongues—to protect local culture, while others rely on exoglossic, non-indigenous languages as a lingua franca. This distinction often follows geographic patterns, with indigenous languages serving as official tools more frequently in Europe and Asia than elsewhere.

Historical precedents for linguistic standardization are ancient. Around 500 BC, Darius the Great implemented Imperial Aramaic across the Achaemenid Empire to bridge vast distances and diverse populations. Similarly, in 221 BC, Qin Shi Huang standardized written Chinese, creating a literary foundation that persisted for two millennia. Today, the designation remains highly contentious. Official multilingualism—where governments provide services in multiple languages—is common in places like Switzerland, Canada, and India, yet the policy is frequently debated as either a necessary step for inclusivity or a logistical burden.

The legal status of these languages can be complex. In India, the constitution recognizes 22 scheduled languages, while Bolivia leads the world with 37. Conversely, some states maintain a de facto standard without formal decree. In Hong Kong, for instance, Chinese and English hold equal status, but Cantonese and Traditional Chinese characters function as the practical standard. Even when laws change, as seen in Israel’s 2018 Nation-State law or the post-1948 removal of English from Israeli legal requirements, the transition often reflects shifting political priorities rather than immediate changes in daily communication.

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