A Tournament to Remember

The last time the Triwizard Tournament took place was in 1898 at Hogwarts, when Albus Dumbledore was the champion for his school. Why hasn't it occurred since Harry's time?

Dumbledore was 115-116 when he died.
If you don't know what a Kelpie is, look it up on Harry Potter Wiki.

*I don't own Dumbledore or Gellert. I do own the plot, however. If you steal it, you'll be reported faster than you can say Quidditch. Thanks*

Don't plagarize, but do enjoy.

~Icamane