J K Rowling’s new website for Harry Potter fans (http://www.pottermore.com) was originally launched in July 2011, with limited access to a group of beta testers. It was opened to all fans in April of 2012.
Pottermore website launch (2011)
Date July 31st, 2011
Certainty Date based on real world calendar
Location in Canon Pm: Pottermore
Type of Event Fandom event