The Constitution has been ratified and taken into effect at March 4, 1789. As of the year 2012, the U.S has been using the Constitution for 223 years (2012-1789 = 223).
10 years
27
September 17th would have made 13 years.
7.8 years and a half
ten years
five years
There has been 27 amendments added to the constitution
the constitution has been changed 10 times.
In 2013 this is his 5th year of office. The US constitution will only allow him to do 8.
11 Years
USA: 212 years
11 YEARS