It started March 20th, 2003. As of this March 20th, it will have been seven years.
Mesopotamia is a region. Iraq is a country. Therefore, Mesopotamia has existed since the Euphrates and Tigris Rivers started flowing. Iraq has only been a political entity since 1919 and a truly independent one since 1954, its borders never changing. As a result, Mesopotamia has always been in Iraq since Iraq began to exist.
since she started
Since it started
Probably since the show started.
the Americans have been in Iraq for 7 years
Since they started planning cities.
Since the show started in 1969.
Since human beings started hunting them, they have been on the endangered list.
the next generation has been on since about 2001 but the originally started in the 80's
Since the beginning. Him and Pete started it.
since people started burning oil
since the world started