In networking, a high-bandwidth trunk to which smaller networks connect. The original backbone of the Internet was NSFnet, funded by the US National Science Foundation, which linked together the five regional supercomputing centres.
The ‘Sun of May’ was added in 1818. The blue bands are a shade known as ‘celeste’, said to be the colour of the sky which inspired Argentine revolutionary Manuel Belgrano before battle. Effective date: 16 August 1985.