The Hungarian Bibliotheca Corviniana was one of the first and largest Renaissance Greek-Latin libraries, established by Matthias Corvinus, King of Hungary between 1458 and 1490. In 1490, the library consisted of about 3,000 codices or "Corvinae". Beatrix of Aragon, Queen of Hungary, encouraged his work with the Bibliotheca Corviniana. After Matthias' death in 1490 many of the manuscripts were taken from library and dispersed, subsequently the Turkish invasion of Hungary in the 16th century saw the remaining valuable manuscripts taken to Turkey.
The Ch'ing-yang event of 1490 (also Ch'ing-yang, Chi-ing-yang or Chíing-yang meteor shower) is a presumed meteor shower or air burst in Qingyang in March or April 1490. The area was in the province of Shaanxi but is now part of Gansu. If a meteor shower did occur, it may have been the result of the disintegration of an asteroid during an atmospheric entry air burst. More than 10,000 people were struck dead. All of the people in the city fled to other places.