Sn is Tin. and the suffix for Chlorine is nearly always Chloride. The (II) means the Tin [in a hypothetical situation where the compound was purely ionic] has an oxidation state of 2, or +2, (ie deficient of two electrons). Source: A2 Chemistry Student.
The chariot was built of pieces of wood which had been bent into the required shape possibly by immersing them in boiling hot water for several hours, bending them and then letting them dry. Various kinds of wood were used: elm, ash for the axles and sycamore for the foot board. The Egyptians knew two types of chariots.
The earliest spoke-wheeled chariots date to ca. 2000 BC. The use of chariots peaked around 1300 BC (see Battle of Kadesh). Chariots had lost their military importance by the 1st century AD, but chariot races continued to be popular in Constantinople until the 6th century.