When did the super ledger come out?

2065438+March 2007. Super ledger is an open source project aimed at promoting the cross-industry application of blockchain. It was initiated by the Linux Foundation in February 20 15 and officially launched at the end of March 20 17. A foundation refers to a non-profit legal person established for the purpose of engaging in public welfare undertakings by using the property donated by natural persons, legal persons or other organizations in accordance with the provisions of these regulations.