A few questions about Yiddish - though not necessarily in order.who originated the language of yiddish?
When was it originated?
Why was it originated?
How did it spread to become The Jewish Tongue (although not the jewish "HOLY" tongue)?
Why did they make a new language instead of sticking with loshon hakodesh?
Where was it originated?

http://en.wikipedia.org/wiki/Yiddish

It's not "the Jewish tongue," it's the Ashkenazi tongue. Yiddish is a Jewish tongue, alongside Ladino (Balkan/Grecian Judeo-Spanish), Jaquetia (Maghrebi Judeo-Spanish), and al-Yahudaya (Judeo-Arabic).

That list ignores Loazith, Judeo-Provencal, and other less-travelled languages.

If people want to be pedantic he's talking about Ostjiddisch, anyway.

1. Yiddish developed roughly 1,000 years ago in the area of the Rhine valley.
2. As in the case of any other natural language it wasn't "created" deliberately.
3. Basically since the Jews were educated and literate in Hebrew/Aramaic but not in Latin, the local Middle High German slowly developed into a separate Jewish dialect, and eventually into its own language.
4. Yiddish was the most widely spoken Ashkenazi language, but not the only one...
5. Jews hadn't used lashon hakodesh as a spoken vernacular language since the Babylonian exile.

Are Western and Eastern Yiddish analogous to Ladino and Jaqutia, or are the differences more or less pronounced?

I believe exhaustive list would have about 50 languages on it, most of which left no record at all ...

It's not so simple. The history of the language has been revised since the 1960's.

No, in my opinion I believe that Western Yiddish is properly a German dialect, whereas Eastern Yiddish (due to differences in morphology, syntax, and phonology) is a separate language within the Germanic languages family.

Thanks a Million