The phrase "infamous day" refers to a day that is well-known for a negative or shameful event that occurred.
Sentences with «infamous day»
It could usher in a kind of new politics that neither Cameron nor Clegg envisaged during those five infamous days in May. (labour-uncut.co.uk)
Less known are his fight against multiculturalism in higher education (he was at Stanford during the infamous days of «Hey, hey, ho, ho, Western civ has got to go!») (firstthings.com)
Sixteen months have passed since that infamous day in May of 2013. (eplindex.com)