Ljubljana Marshes Wheel - World's Oldest Wooden Wheel (Slovenia, 5,200 years old)

The Ljubljana Marshes Wheel is a wooden wheel that was found in the Ljubljana Marshes some 20 kilometres south of Ljubljana, the capital of Slovenia, in 2002. Radiocarbon dating, performed in the VERA laboratory (Vienna Environmental Research Accelerator) in Vienna, showed that it is approximately 5,150 years old, which makes it the oldest wooden wheel and the oldest real wheel-axle combination yet discovered. It was discovered by a team of Slovene archeologists from the Ljubljana Institute of Archaeology, a part of the Research Center at the Slovene Academy of Arts and Sciences, under the guidance of Anton Velušček. The invention of the wheel falls into the late Neolithic, and may be seen in conjunction with other technological advances that gave rise to the early Bronze Age. The Halaf culture of 6500–5100 BCE is sometimes credited with the earliest depiction of a wheeled vehicle, but this is doubtful as there is no evidence of Halafians using either wheeled vehicles or even potter