The Bogalusa saw mill killings was a racial attack that killed four labor organizers on November 22, 1919. It was mounted by the white paramilitary group the Self-Preservation and Loyalty League (SPLL) in Thibodaux, Louisiana. They were supported by the owners of Great Southern Lumber Company, a giant logging corporation, that hoped to prevent union organization and the Black and White labor organizations from merging.
With the role of the network reduced to a core of functionality, it became possible to exchange traffic with other network independently from their detailed characteristics, thereby solving Kahn's initial problem. DARPA agreed to fund development of prototype software, and after several years of work, the first demonstration of a gateway between the Packet Radio network in the SF Bay area and the ARPANET was conducted by the Stanford Research Institute. On November 22, 1977 a three network demonstration was conducted including the ARPANET, the SRI's Packet Radio Van on the Packet Radio Network and the Atlantic Packet Satellite network.