Oslo has been the capital since 1814, when Norway gained its independence
from Denmark. Originally named Christiana, the name was changed to Oslo
in 1925.
There are 40 islands in and around the city limits. There are also 343
lakes. The largest is Maridalsvannet which is the main source of
drinking water.
Oslo has a strong economy and is the world's 10th most expensive place to live.
The Nobel Peace Prize is awarded in Oslo City Hall each year on December 10.