Saacadaha fooxa waxaa markii ugu horreysay loo isticmaalay Shiinaha qiyaastii qarnigii 6-aad; Japan, mid ayaa wali ka jira Shōsōin, in kasta oo jilayaasheeda aysan ahayn Shiineys, laakiin Devanagari. Sababtoo ah isticmaalkooda joogtada ah ee jilayaasha Devanagari, oo muujinaya isticmaalkooda xafladaha Buddhist-ka, Edward H. Schafer wuxuu qiyaasay in saacadaha fooxa laga soo saaray Hindiya. In kasta oo ay la mid yihiin saacadda shumaca, saacadaha fooxa ayaa si siman u gubtay oo aan lahayn dabaq; sidaas darteed, waxay ahaayeen kuwo sax ah oo ka badbaado badan isticmaalka gudaha.
si siman oo aan olol lahayn loo gubay