The Knowledge of how Quidditch came into the wizarding world is all thanks to Gertie Keddle who kept a diary of what she saw. According to her diary entries we can conclude that the first Qudditch players met on Queerditch Marsh to play. She describes the creators as "broomstick idiots". Even after reading Quidditch through the Ages you will never learn the names of the founders of the game. However for the full story of how the game came into existence see chapter 3 of QUIDDITCH THROUGH THE AGES.
Sungkyunkwan was created in 1398.
Kościerzyna was created in 1398.
Wyszogród was created in 1398.
Quidditch Through the Ages was created in 2001.
Principality of Bayreuth was created in 1398.
Ferapontov Monastery was created in 1398.
Savvino-Storozhevsky Monastery was created in 1398.
Mount Grace Priory was created in 1398.
She was the flying instructor for first years and the quidditch referee.
It was Carrie uder wood in 1398
First find half the students -1398 divided by 2 = 699. Take 25 off that and you get the answer.