| In countries that do not formally designate an official language, a de facto national language usually evolves. |
| At age seventeen he led a successful coup against Mortimer, the de facto ruler of the country, and began his personal reign. |
| By a constitutional amendment adhering to EU law, Malta gives the right for the freedom to any religion or none at all but de jure not de facto. |
| Although the United States currently has no official language, it is largely monolingual with English being the de facto national language. |
| In 1830, a revolution in the southern half of the country led to the de facto independence of the new state of Belgium. |
| Bohemond was the de facto leader of the Crusade during its passage through Asia Minor. |
