This task is about reading the given passage and construct a question about the information present in the passage. Construct a question in such a way that (i) it is unambiguous, (ii) it is answerable from the passage, (iii) its answer is unique (iv) its answer is a continuous text span from the paragraph. Avoid creating questions that (i) can be answered correctly without actually understanding the paragraph and (ii) uses same words or phrases given in the passage.

Konbaung kings extended Restored Toungoo's administrative reforms, and achieved unprecedented levels of internal control and external expansion. For the first time in history, the Burmese language and culture came to predominate the entire Irrawaddy valley. The evolution and growth of Burmese literature and theatre continued, aided by an extremely high adult male literacy rate for the era (half of all males and 5% of females). Nonetheless, the extent and pace of reforms were uneven and ultimately proved insufficient to stem the advance of British colonialism.
What language eventually came to power in the Irrawaddy valley ?