When in 1842 the British occupied Shanghai – City on the Sea , they named it a treaty port and opened to foreign involvement. The little village was transformed into a city and immediately divided into 3 autonomous settlements called ‘concessions’ : British, American and French. These colonies had an irresistible impact on the future international metropolis, as they all brought their specific architecture, culture and society. Although native locals had their own walled Chinese city, the curiosity of the foreign lifestyle dominated and they chose to live in those enclaves. Hence, the melting pot was put on fire and the mix began.