where did judiasm originate?

Most people believe it originated with Abraham -- see Genesis.

http://wiki.answers.com/Q/How_did_Judaism_start

Could it be Judea?

Be sure to read the first paragraph carefully. Then check out the maps among these:

http://www.google.com/search?q=map+mesopotamia&rls=com.microsoft:en-us:IE-SearchBox&ie=UTF-8&oe=UTF-8&sourceid=ie7&rlz=1I7SUNA

Judaism originated in the ancient region of Canaan, which is approximately modern-day Israel and Palestine. To find this answer independently, one can follow these steps:

1. Open a search engine like Google.
2. Type in the question, "Where did Judaism originate?"
3. Look for reliable sources such as history books, scholarly articles, or educational websites.
4. Click on reputable sources like encyclopedia entries, academic journals, or websites of renowned Jewish organizations.
5. Read the information provided, which will likely mention the origins of Judaism in the region of Canaan.

Remember, it's important to evaluate the credibility of sources when conducting independent research to ensure accurate and reliable information.