Historical Urban Population: 3700 BC - AD 2000

The Historical Urban Population, 3700 BC - AD 2000, originally developed by the Yale School of Forestry & Environmental Studies, is the first spatially explicit global data set containing location and size of urban populations over the last 6,000 years. The data set was created by digitizing, transcribing, and geocoding historical, archaeological, and census-based urban population data. Each data point consists of a city name, latitude, longitude, year, population, and a reliability ranking to assess the geographic uncertainty of each data point. Despite spatial and temporal gaps, no other geocoded data set at this resolution exists. It can therefore be used to investigate long-term historical urbanization trends and patterns, evaluate the current era of urbanization, and build a richer record of urban population through history.

《历史城市人口数据集》，时间跨度为公元前3700年至公元2000年，最初由耶鲁大学森林与环境学院开发，是首个包含过去6000年城市人口地理位置及规模的全球性空间明确数据集。该数据集通过数字化、转录和地理编码历史、考古和基于人口普查的城市人口数据而创建。每个数据点包含城市名称、纬度、经度、年份、人口数量以及可靠性排名，用以评估每个数据点的地理不确定性。尽管存在空间和时间上的空白，但在此分辨率下，尚无其他地理编码数据集。因此，它可以用于研究长期历史城市化趋势和模式，评估当前城市化时代，并通过历史构建更丰富的城市人口记录。