Yes.
Yes.
Yes.
Camp Interlaken JCC was created in 1966.
The JCC was established in 1854, when it was called the Young Man's Hebrew Association.
Some JCC's are closed on Shabbat while others aren't. You should call your local JCC or visit their web site to find out what their hours are.
The related link is the main JCC website for information.
The YMHA is a dated term, and is usually now called JCC (Jewish Community Centers). They offer a variety of events. It depends on the location.
Absolutely!
Yes.
It's the abbreviation for the Jewish Community Center.
A lot. Major Universities in the US that teach Yiddish include: Harvard, Columbia, Berkeley, Michigan, NYU, UPenn, JTS, Indiana, UColorado, Johns Hopkins, UMass, and UC Santa Barbara.
Yiddish = Yiddish (ייִדיש)