 The purpose of the register is to provide a definitive and accessible resource to preserve specific tartan designs, including their thread counts.The data set comprises the pre-existing registrations of at least 7,000 tartans from the Scottish Tartans Authority (STA) "International Tartan Index" ("ITI"), which in turn had absorbed those of the Scottish Tartans Society (STS) "Register of All Publicly Known Tartans" ("RTAS") and the IATS–TECA "TartanArt Database" a.k.a.