Following the revolution of 1952, the Suez Crisis of 1956 and the subsequent nationalization of many industries from 1957, the vast majority of Greek and Armenian communities of Minya left Egypt. This led to the beginning of the decline for the colonial district. During this period, the internal population movements further accentuated disparities between the two parts of the city: the old city with its legacy of obsolescence and poverty, and the colonial district with its modern buildings and services. Densities continued to increase in the old city, where there were inadequate community facilities. The resultant overcrowding accelerated deterioration of both infrastructure and the standing housing stock.