Jesus Christ, I'm asking for a simple answer to form my topic, not for a ten-page paper and bibliography.
You are completely wrong about "for every language there is a sign-language". Spanish is the official language of both Spain and Mexico, and yet the sign-language is different for both. Therefore, your "higher-thinking" method in invalid.
I know that ASL is used in both the USA and Canada. That led me to think that ASL is one of the more widely-used sign-languages. I'm sorry that I turned to the Deaf community to ask a question about sign-language. Next time I will ask people who have no idea.