I want to know the answer to the following question:
What happened at the aviation school in May 1913?
All the background I'm provided with is that "The Ottoman Empire started preparing its first pilots and planes, and with the founding of the Aviation School (Tayyare Mektebi) in Yeşilköy on 3 July 1912, the Empire began to tutor its own flight officers.". Is that enough to answer the question?
Answer: no