Over the first 53 years of Indonesian independence, the country's first two presidents, Sukarno and Suharto constantly nurtured the sense of national unity embodied by Indonesian, and the language remains an essential component of Indonesian identity. Through a language planning program that made Indonesian the language of politics, education, and nation-building in general, Indonesian became one of the few success stories of an indigenous language effectively overtaking that of a country's colonisers to become the "de jure" and "de facto" official language. Today, Indonesian continues to function as the language of national identity as the Congress of Indonesian Youth envisioned, and also serves as the language of education, literacy, modernization, and social mobility. Despite still being a second language to most Indonesians, it is unquestionably the language of the Indonesian nation as a whole, as it has had unrivalled success as a factor in nation-building and the strengthening of Indonesian identity.