Mapping International Languages
As a fundamentally political map, the present attempt selects languages not on the basis of their number of speakers, but rather on that of their official status. Only international languages are selected, defined here as languages with an official status in at least three internationally recognized sovereign states, with at least 100,000 inhabitants, provided that it is the sole official language in at least one of those states. As a result, a number of international languages are not depicted. Swahili, for example, has official status in Kenya, Tanzania, and Uganda, but all three also use English. Italian has official standing in Italy, Switzerland, San Marino, and the Vatican, but the latter two states have too few inhabitants to merit inclusion. Several languages occupy an ambiguous position vis a vis such criteria. Mandarin Chinese (Putonghua), for example, is mapped because it has official status in China, Taiwan, and Singapore, and is the sole national language in the former two countries. But Taiwan is by no means a fully internationally recognized state, making the inclusion of Mandarin a problematic gesture. Serbian occupies a similar position, as it has official status in Serbia, Bosnia & Herzegovina, and the incompletely recognized state of Kosovo—yet it is not mapped. Serbian is ignored, however, because its international standing is minimal; not only is Kosovo’s sovereignty disputed (most vehemently by Serbia), but Bosnia and Herzegovina barely functions as an actual state despite its international recognition.
Another problem concerns the mapping of states with more than one official language on the list of “international languages.” There are more of these states than one might think. In three countries, three of these languages have official status: Belgium (French, Dutch, and German), Equatorial Guinea (Spanish, Portuguese, and French), and Singapore (English, Mandarin Chinese, and Malay). In such cases, I have tried to map the most commonly used language, although such a determination is often no easy manner. For Djibouti, for example, I picked French over Arabic, as French is used more extensively in the country’s educational system, whereas for Chad I picked Arabic over French, because Chadian Arabic is widely used as the country’s lingua franca. I selected English over French in Vanuatu because the main spoken language of the islands, Bislama, is an English-based Creole. I welcome readers’ corrections if I have erred in any of these selections.
The map uses color intensity to try to convey the international significance of these languages. English is thus in the darkest shade, reflecting the fact that it has official standing in more countries than any other language. Arabic, French, and Spanish are depicted with a somewhat lighter hue, and Portuguese lighter still. The lightest color is used for Dutch (depicting the Netherlands, Belgium, and Suriname), which barely makes the list.
The data on which the map is based are derived from the Wikipedia table posted here. I should also note that countries are not divided: Puerto Rico, a U.S. dependency, is thus mapped as English speaking despite the fact that Spanish is the more widely spoken official language on the island.
It is of note that most countries use one of these eleven international languages at an official level. The main areas of exception are eastern and northern Europe, Central Asia, and mainland Southeast Asia.