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Britain.tv Wikipedia - Parthia (3138 words) |
 | It was not until the 2nd century BCE that the Parthians were able to profit from the continuing erosion of the Seleucid Empire, gradually capturing all its territories east of Syria. |
| By 129 BCE the Parthians were in control of all the lands right to the Tigris, and established their winter encampment on its banks at Ctesiphon, downstream from modern Baghdad. |
| In 53 BCE, the Roman general Crassus invaded Parthia, but was defeated at the Battle of Carrhae by a Parthian commander called Surena in the Greek and Latin sources, most likely a member of the Suren-Pahlav Clan. |
| A TIMELINE OF MATTER (1330 words) |
| Metallurgy : from previous to 6000 BCE copper is smelted from malachite which is found in surface deposits and later mined; copper is molded into many types of household items, cooking vessels and utensils, and tools, but is too soft to hold an edge, and therefore of limited use in the production of weapons. |
| Around 3500 BCE however, a method of strengthening copper is finally discovered: by mixing the molten metal with around 15% molten tin, the alloy called bronze is produced. |
| century BCE, and a 160 year old observation of the autumnal equinox, he also discovered the principle of the Precession of the Equinoxes, that is, the conical motion of the earth’s axis around the pole of the ecliptic plane every 26,000 years, shifting the position of pole stars in a projected circular motion. |
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