The practice of using natural objects as rudimentary pieces of furniture likely dates to the beginning of human civilisation. Early humans are likely to have used tree stumps as seats, rocks as rudimentary tables, and mossy areas for sleeping. During the late palaeolithic or early neolithic period, from around 30,000 years ago, people began constructing and carving their own furniture, using wood, stone, and animal bones. The earliest evidence for the existence of constructed furniture is a Venus figurine found at the Gagarino site in Russia, which depicts the goddess in a sitting position, on a throne. A similar statue of a Mother Goddess was found in Catal Huyuk in Turkey, dating to between 6000 and 5500 BC. The inclusion of such a seat in the figurines implies that these were already common artefacts of that age.