Politically
It doesn't.
Spain has always been very Catholic. It is even the state religion.
If you go back in history, the Iberian peninsula has seen eras of paganism, Christianity, Christianity vs Islam, and even a few periods dominated by Islam when the Moors nearly conquered the entire peninsula.
I am sure that there are a few Jews living in Spain, but the country itself has no ties to the Jewish nation.
Jewish History in Spain
Umayyad Islamic Spain was one of the Jewish Golden Ages. A number of Jewish poets like Ibn Gabirol and Yehuda Ha-Levi composed beautiful poems and piyyut in Spain. Spain also gave rise to important Jewish theologians like Rabbi Moses ben Maimon (Maimonides) and Rabbi Moses ben Nakhman (Naimonides). Some Jews even considered Toledo, Spain to be the "New Jerusalem". (It is important to note that they did not consider Toledo to be holy, just very special.)
After the fall of the Islamic States in 1492, Spain instituted the Inquisition, in which tens of thousands of Jews were killed and the expelled. Many of those Jews fled to Thessaloniki, Greece (in the Ottoman Empire) and Fez, Morocco. This community in exile became known as the Sephardic Jewish Community.
No Disney channel does not relate to Jewish
To be Jewish can mean you either practice the Jewish religion, or are from a Jewish decent. It is both a race and a religion. Someone that is culturally Jewish may not practice the religion, but has a Jewish heritage. Likewise, people that do practice the Jewish religion do not have to be culturally Jewish, or have Jewish ancestors.
There aren't areas of the Jewish religion.
John Philip Sousa's ancestors are buried in the Jewish cemetery in Spain's Canary Islands.
The main religion in Spain is Roman Catholic.
The main religion in Spain is Roman Catholic.
Jewish Institute of Religion ended in 1950.
Jewish Institute of Religion was created in 1922.
Jewish can refer to both a religion and an ethnicity. It can describe individuals who practice Judaism as their religion, as well as those who identify with the cultural and historical aspects of the Jewish people.
Judaism ... the religion of the Jewish People ... is comprisedof a single religion, known as "Judaism".Judaism ... the religion of the Jewish People ... is comprisedof a single religion, known as "Judaism".
Jew
Yes. Judaism is the religion. Jewish is the adjective pertaining to that religion.