Who started “Go the F**k to Sleep”?

Readers forwarding the advance PDF, on Open web, May 4, 2011. It reached 5 platforms in 17 months.

LineageContestedKey steps, 11 of 16. Lines follow time and platform
The New York TimesBefore the first postReaders forwarding the advance PDFFirst postPressMilestoneOwner responseBacklashPlatform jumpCommercialPlatform jumpPressAfterlifePatient zero