It depends on what year of the Summer Olympics. In 2012 and 2008, 204 nations participated in the Summer Olympics. In 2004, 201 nations participated in the Summer Olympics.
There were 204 countries or NOCs in the 2012 Summer Olympics
205205The are 204 NOC with athletes who participated in the 2012 Summer Olympics
Women's Boxing is the newest added to this 2012 Olympics
Yes it is including the recently added Women's Boxing Events for the 2012 Summer Olympics
The 2012 Summer Olympics in London had a total of 10,820 athletes representing 204 nations.
436 olympians are representing Russia at the 2012 summer olympics. 208 men and 228 women.