Israel has managed to assemble an impressive inventory of nuclear weapons without testing - unless a mysterious light observed in the South Atlantic in 1979 was, as some experts believe, a clandestine joint Israeli-South African test.
It turned out that the programmer who had built the link between the front-end sales system and the back-end inventory system had somehow managed to duplicate a line of code.
U5: Earthenware pottery-making skills were included in 2010 in the Kgatleng district inventory of intangible cultural heritage that is managed by Phuthadikoba Museum and the Department of Arts and Culture of the Ministry of Youth, Sport and Culture.