National Science Foundation (NSF) Announces Launch of the Open Knowledge Network, A National Open-Data Platform Connecting More Than 40 Knowledge Graphs

From an NSF Announcement:
Built through the NSF Prototype Open Knowledge Network program and in collaboration with a broad coalition of federal partners, the network is now available for public use
The U.S. National Science Foundation announced today the launch of the NSF Open Knowledge Network (NSF OKN), a national open-data infrastructure that links 43 interconnected knowledge graphs and tens of billions of connected facts across health, the environment, justice, manufacturing, and national se