Shinbashi is often called "Salaryman Town" for an obvious reason - no matter what time of day you are there, you will always see a load of salarymen in the area.
Ever since the Edo Period, Shinbashi has always been a lively bustling town. When the first railway line opened for service in 1872 (Meiji 5) between Shinbashi station and Yokohama, the area became even more popular.
After World War 2 when Japan was scarce in resources, Shinbashi became a black market which was called "a place where one could get their hands on practically anything."