The project compiles sub-national agricultural statistics (1982-present) for all countries of the world, primarily using publicly available national sources.  The archive includes all food crops and major cash crops. To facilitate their eventual use in food security assessment, agricultural development, and climate change applications, several ancillary tools are also being compiled: 1) the evolution and geographic shape of administrative or statistical reporting units over time, 2) sub-national crop-specific seasonal calendars, 3) an expanded crop coding system to allow accurate global crop comparisons, and 4) a digital collection of original source documents for each country.