Did you know that the nursery rhyme "Georgie Porgie pudding and pie" refers to a notorious case of wanton sexual indiscretions and harassment in the 17th Century? Or how about "Mary Mary quite contrary" being all about the torture of Protestants in Queen Mary's bloody reign?
These are from another cracked.com list: The Disturbing Origins of 5 Common Nursery Rhymes.
To me, these explanations seem rather contrived, and I wonder how much the words have been fitted to the history in retrospect.
Or maybe future generations of children will be singing nursery rhymes all about the death of Diana, and the scandal of the valet and the "senior royal"