This name derives from the name of the Asian country. The word "china" is derived from the Persian word “cin”, which in turn derives from Sanskrit word “Cīna”. It is first recorded in 1516 in the journal of the Portuguese explorer Duarte Barbosa. The journal was translated and published in England in 1555. The traditional theory, proposed in the 17th century by Martino Martini, is that “Cīna” is derived from "Qin", the westernmost of the Chinese kingdoms during the Zhou Dynasty.