#Libra BIS and Facebook papers published dates....

Facebook published it's libra whitepaper on 6/18/19 and the BIS published it's report on 6/23/19....

The BIS — an international financial institution in Switzerland owned by 60 of the world’s central banks — published a report outlining its stance on June 23.
III. Big tech in finance: opportunities and risks
https://www.bis.org/publ/arpdf/ar2019e3.pdf

As previously reported,  Facebook published the white paper for its long-awaited cryptocurrency and blockchain-based financial infrastructure project, Libra, on June 18.
https://cointelegraph.com/news/facebook-releases-cryptocurrency-white-paper-for-libra-currency