From this desk calendar, researched and written by Fred Reilly.
Remember what George Carlin once pointed out... That on tv you can say "prick his finger," but you can't say "finger his prick." In any case, I didn't know this one.
Incomplete factoid. They didn't cancel any dates but postponed them. Seems to have forgotten that Cardiff was also moved from the 11th July to the 16th.