Majiayao amphora (IMAGE) Johannes Gutenberg Universitaet Mainz Caption An amphora of the Majiayao culture, Gansu, 3300-2100 BC Credit photo/©: Peter Kupfer Usage Restrictions This image may only be used in connection with the press release "China's viticulture in transition", issued by Johannes Gutenberg University Mainz on April 15, 2020. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.