Exploring trade globalization in the long run: The RICardo project

"Initiated in 2004, the RICardo project focuses on bilateral trade data of all the world's countries from the early nineteenth century to the eve of the Second World War. The project includes the construction of a database and the creation of a website. It is a pioneering work in the field of historical trade statistics that aims at providing easy-to-access research material to the scientific community and at attracting a wider public to the history of trade relationships. The article emphasizes the originality of the project and sums up its various aspects by reviewing previous trade databases, clarifying the main features of historical trade statistics, and describing the construction and use of the RICardo website.