So, I misread my post calendar. Yesterday (August 8) I originally published my list on the bombing of Nagasaki, but that was actually for today (August 9) and yesterday was supposed to be the Straight Outta Compton anniversary.
To make sure my "on this day" bit was accurate, I changed the posting info. I backdated the posting for Straight Outta Compton to August 8, 3:01 AM, and changed the Nagasaki date to August 9, 12:09 AM.
Sorry for the mix-up!