The starting of the Olympic ceremony was held on July 27, 2012 in London.It is the 3rd time that London is hosting the Olympic games, which makes it the only country to host modern Olympics 3 times. It first hosted this epic event in the 1908 when Italy pulled out.
In 1908, only 22 countries participated which increased to 59 in the year 1948. This year around 204 countries are participating. This year it is an event of 45 days which is almost one-forth from the the year 1908. Number of sports has also increased from 22 in 1908 to 26 in 2012.
The estimated cost of this years event is GBP 9.3 billion while it was GBP 75,000 in 1908.