Technically, Game of Thrones is based on a true story, since it was based on the War of the Roses 100 Years War.
It doesn't mean "non-fiction." It just means the idea was based on something non-fiction.
Technically, Game of Thrones is based on a true story, since it was based on the War of the Roses 100 Years War.
It doesn't mean "non-fiction." It just means the idea was based on something non-fiction.