With the recent developments in Ukraine and Putin's talk on restoring the Soviet aor the Russian Empire, newly independent territories and cities at the former imperial periphery are again in focus. Riga, today's capital of Latvia, belonged to the Russian Empire (1710-1917) and used to be one of imperial Russia's main ports. In the decade before World War I, Riga was the port with the highest turnover, surpassing both Odessa and the capital St. Petersburg. But Riga was never really a "Russian" city: before World War I, only 18 percent of its inhabitance were native Russian speakers. More important for its economic viability were its Latvian, German, and Jewish residents. This talk will map Riga as a port city and trading metropolis using research results obtained through GIS and archival research. It will also highlight the diversity of the people behind Riga's economic success.