https://cepii.fr/CEPII/en/bdd_modele/bdd_modele_item.asp?id=32

TRADHIST allows analyzing trade globalization in a long-term historical perspective. It was notably used to estimate the evolution of trade costs over two centuries (Fouquin and Hugot, 2016).

TRADHIST comprises five types of variables:

• bilateral annual nominal trade flows;
• country-level aggregate nominal imports and exports;
• nominal GDP;
• exchange rate; and
• bilateral features known to favor or hamper trade, including geographical distance, common borders, colonial and linguistic links, and bilateral tariffs.
  

TRADHIST includes about 1.9 million bilateral trade flows, 42,000 observations on total imports and exports, and 14,000 observations for GDP and exchange rates, for a 188-year period spanning 1827–2014.