The first swords known so far date to ca. the 33rd to 31st centuries BCE, during the Early Bronze Age, and have been founds at Arslantepe by Marcella Frangipane of Sapienza University of Rome. A cache of nine swords and daggers was found; they are cast from an arsenic–copper alloy. Analysis of two swords showed a copper/arsenic composition of 96%/3.15% and 93%/2.65%. Two daggers tested at copper/arsenic  96%/3.99% and 97%/3.06% with a third at copper/silver composition of 50%/35% with a trace of arsenic. Among them, three swords were beautifully inlaid with silver. These objects were found in the "hall of weapons" in the area of the palace.
These weapons have a total length of 45 to 60 cm which suggests their description as either short swords or long daggers.
These discoveries were made back in the 1980s. They belong to the local phase VI A. Also, 12 spearheads were found. These objects were dated to the period VI A (3400-3200 BC). Phase VI A at Arslantepe ended in destruction—the city was burned.
Kfar Monash Hoard was found in 1962 in Israel. Among the many copper objects in it, "Egyptian type" copper axes were found. These axes were made using copper-arsenic-nickel (CuAsNi) alloy that probably originated in Arslantepe area. Objects from Arslantepe using such polymetallic ores are mainly ascribed to Level VIA (3400–3000 BCE), dating to the Uruk period.
The next Phases or periods were VI B1 and VI B2. This is the time to which the other big discovery at Arslantepe belongs. This is the rich “Royal Tomb” where high quality pottery, and a large number of refined metal objects, made with several kinds of copper based alloys, were found. A sword was also found in the tomb. This tomb is also known as the tomb of "Signor Arslantepe", as he was called by archaeologists. He was about 40 years old, and the tomb is radiocarbon dated to 3085–2900 Cal. BC.
This “Royal Tomb” dates to the beginning of period VI B2, or perhaps even earlier to period VI B1. There’s a considerable similarity between these two groups of objects in the “hall of weapons”, and in the “Royal Tomb”, and the times of manufacture of some of them must have been pretty close together.