St.Petersburg is divided into 12 administrative units: Admiralteiskaya, Kazanskaya, 
Spasskaya, Kolomenskaya, Alexandro-Nevskaya, Viborgskaya, Vasiljevskaya, 
Litejnaya, Narvskaya, Moskovskaya, Peterburgskaya, Rozhdestvenskaya. (such 
division was terminated after February Revolution of 1917).
Opening of the zoo.