Laws of all types get updated every year.
It depends on what you did with the gun and what your local laws stipulate.
In the entire U.S. there are an estimated 20,000 or more gun laws.
George Washington surely carried some kind of gun from time to time.
No matter WHERE you use a gun, there are laws that govern what you can and cannot do. If you do not know those laws, please do not own a gun.
Your question is an incorrect statement. Why do you think states must not enforce gun laws? They do.
That is too broad of a question to answer as asked. Is there some specific information you want about gun laws?
New guns are invented all the time. They haven't stopped
Literally, tens if not hundreds of thousands of laws. My copy of US state gun laws is about 2 inches thick. It is estimated that there are more than 20,000 gun laws in the US- and you are asking about "around the world".
after the thumper is the last gun.
Like most states, there are far too many gun laws for a brief answer here on Answers.com. However, this is a link to a review of several of their gun laws. https://en.wikipedia.org/wiki/Gun_laws_in_Louisiana
Laws on this vary by jurisdiction. We'd need to know your location in order to answer this.
barak obama is pushing for more vigurous gun control laws and background checks