Task: Text to Code
Input (English): What is the total number of unique official languages spoken in the countries that are founded before 1930?
Output (English): SELECT count(DISTINCT T2.Language) FROM country AS T1 JOIN countrylanguage AS T2 ON T1.Code  =  T2.CountryCode WHERE  IndepYear  <  1930 AND T2.IsOfficial  =  "T"