Esther 1:22

1:22 He sent letters throughout all the royal provinces, to each province according to its own script and to each people according to its own language, that every man should be ruling his family and should be speaking the language of his own people.

Esther 8:9

8:9 The king’s scribes were quickly summoned – in the third month (that is, the month of Sivan), on the twenty-third day. They wrote out everything that Mordecai instructed to the Jews and to the satraps and the governors and the officials of the provinces all the way from India to Ethiopia – a hundred and twenty-seven provinces in all – to each province in its own script and to each people in their own language, and to the Jews according to their own script and their own language.

Esther 9:27

9:27 Therefore, because of the account found in this letter and what they had faced in this regard and what had happened to them, the Jews established as binding on themselves, their descendants, and all who joined their company that they should observe these two days without fail, just as written and at the appropriate time on an annual basis.