In the 4th century, the city served as an episcopal see.
The city served as the first Missouri capital from 1821 to 1826.
The city again served as capital of Louisiana from 1865 to 1880.
The city served as a new capital for the Empire.
These cities also serve as the medical and service centers for the area.
Up until the mid 19th century the city served as California's cultural and political center.
The city serves as the nation's cultural and industrial center.
Today the city serves as the commercial and financial center for a large rural area.
American serves 13 European cities, up from 8 in 1986.
In other words that the City must serve society - and be seen to do so.