Ask yourself that question .
I think they are still used and relevant today because people know that they are very significant. people take that they were written long ago into consideration and that makes it more valuable
After a fierce debate in Congress, in November of 1939, a final Neutrality Act<span>passed. This </span>Act<span> lifted the arms embargo and put all trade with belligerent nations under the terms of “cash-and-carry.” The ban on loans remained in effect, and</span>American<span> ships were barred from transporting goods to belligerent ports.</span>
Why is it ? Maybe I can help