The Quidditch World Cup 1809 tournament is especially remembered for “The Attack of the Killer Forest“, after a disastrous event followed the final match between Romania and New Spain (QWC).
Quidditch World Cup tournaments take place over several months, with the final match falling in July, as in 2014 (QWC) or August, as in 1994 (GF8).
Certainty Stated in canon
Type of Event Wizarding world
From the Web
WizardingWorld.com (Pottermore) features:
Writing by J K Rowling on Imgur (Daily Prophet coverage of the 2014 Quidditch World Cup, originally from Pottermore):
Harry Potter Wiki: Quidditch World Cup