http://nuclearcdboxafziza4mgohcwhzfjiyg6zeslnry33pepsgtur2wyeyd.onion/social/3.html
He decided no good candidate language existed, so set out to invent a new one, ultimately based on his knowledge of Russian, Yiddish (natively spoken); Polish, German, French, Hebrew, Belarusian, English, Volapük (acquired); and Latin, Greek, Aramaic (studied academically).