After 1650, plate armour was mostly reduced to the simple breastplate (cuirass) worn by cuirassiers. The word cuirass for a breastplate indicates that these were originally made of leather. Armour consisted of "sanjo" or iron chainmail worn under an iron breastplate ("char aina"). Even a knights armor had a short metal skirt below the breastplate. They typically had a sword, a helmet, and leather armor or a breastplate of steel. In the eastern zone, warriors are frequently buried with helmet and a plate armour breastplate. Even a knight's armor had a short metal skirt below the breastplate. The green background is a vestment worn under the breastplate. The Talmudic rabbis argued that "Urim and Thummim" were words written on the sacred breastplate. It covered the straps attaching the upper legs iron cuisse to the breastplate. Typhon reveals he is wearing the Aegis breastplate and slays Zeus as well. The Aztecs wore a lightweight close-fitting breastplate which suited the Mesoamerican climate. He is presented with a breastplate by the Knights as well. The painting is signed in the yoke of the breastplate&colon; L. DAVID YEAR IX. Bullet-proof vests are the modern descendant of the breastplate.