DataHub's Core Datasets is a curated collection of essential reference and time-series datasets spanning finance (S&P 500, VIX, bond yields, natural gas prices), economics (CPI, PPP, World Development Indicators, unemployment), and reference data (country codes, airport codes, world cities, NYSE/NASDAQ listings), along with environmental and demographic data like CO2 levels and population statistics. Sourced from authoritative providers such as the World Bank, the Federal Reserve, EIA, and NASDAQ, these datasets are regularly maintained and span multiple pages — serving as foundational, ready-to-use data packages for analysis and research.