These designs were registered in 1997 for the first time as you had mentioned its origin dates back to the 1800 years.
ການອອກແບບເຫຼົ່ານີ້ໄດ້ລົງທະບຽນໃນ 1997 ເປັນຄັ້ງ ທໍາ ອິດທີ່ຂ້ອຍໄດ້ກ່າວເຖິງຕົ້ນ ກໍາ ເນີດຂອງພວກມັນທີ່ມີມາຕັ້ງແຕ່ 1800 ປີ.