Yes sorry, I stand corrected Thorgalaeg, the Covadonga battle took place in the 8th century. The Arabs invaded us in 711 an it took us seven centuries to reconquer what is now known as Spain. Naturally there were very long periods of mutual understanding between the Arabs, Christans and Jews.
I believe the Jews also excelled with the
Escuela de Traducción de Toledo, which was a scholars place were venerable and doctored jews translated documents as you've pointed out already Amirsan.
And of course I'm not trying to put you off writing a good essay, it's just that I felt it was slightly biassed, that's all.
As for the money lending, i tell you when the Catholic Kings expelled the Jews from Spain it was one of the foolest mistakes in all our history. The Jews were the economic lifeblood of Spain at the time, and without them commerce, trade, and economy just plummeted to say the least.
I still remember a story of Jewish Spanish descendants who after 500 years came from the USA to the city of Toledo. They were carrying the key to the house which had been theres. And believe or not, the key fitted perfectly in the worn lock !! The american family nearly had a heartattack then. Imagine returning to a country from which your ancestors have been expelled unrightfully five centuries ago, and the key that has been passed on like a family heirloom from generation onto the next generation actually works !! Toledo is ahistoric city and many buildings, doors, structures, walls etc...are protected by law, so that explains why the house was still standing there after all this time. This came on the Spanish newspapers.
Jews were forced to become converts (anusim) or to be expelled If they held to their religion. Many Spanish surnames are really from Jewish converts. All surnames which refer to colours, trees, rivers etc were chosen by Jews as their christian surnames, such as: Rojo (remember what I posted of Fernando de Rojas ? His surname, "Rojas" is the plural of red in Spanish), Ala, Abadía, Abanillo, Abarim, Abed, Alcazar, Alcañiz, Alemán, Baltasar, Barba, Barceló, Barcelona, Baro, Barrachina, Barrionuevo, Berenguer, Belluga, Caballero, Cabeza, Cabezudo, Cabra, Cáceres, Cádiz, Caldero, Campo, Canete, Carrillo, Cazorla, Chaves, Chico, Chavariz, Chelva, Chapetel, Colombo, Correa, Dalmau, Darmon, Daroca, David, Dávila, Delgado, Díez, Domenech, Donlope, Dormido, Duarte, Elías, Elisa, Elvira, Enero, Enríquez, Escalera, Escobar, Escribá, Espíritu Santo, Espinosa, Espino, Fabib, Fadol, Fajardo, Farache, Faral, Faras, Farias, Faro, Fernandes, Ferrando, Ferrer, Ferrera, Fierro, Fuertes, Fuster, Gabirol, Galaf, Galiana, Gallego, Gallo, Gálvez, Gaona, Garcés, García, García de Moros, Garro, Gato, Gerona, Gilabert, Gil, Girol, Haro, Hasid, Hassan, Hascan, Henríques, Herrero, Herrera, Hervás, Hierro, Hospital, Hoz, Illesas, Iniesta, Ismail, Izquierdo, Jara, Jaime, Jordán, Julia, Kahn, Kayffman, Kesselman, Kohan, Krispin, La Torre, Lacalles, Laparda, Laparra, Lara, Laredo, Lauria, Leo, Lerin, Levi, Leyba, Macanas, Macia, Machado, Marqués, Mayo, Mazana, Mazín, Medina, Meir, Melero, Nadal, Nájara, Narváez, Navarro, Natanel, Negrín, Nieto, Noé, Obadia, Obrador, Olivera, Oliveros, Olivos, Olmos, Orduña, Orella, Orgaz, Ortega, Osorio, Pacheco, Padre, Padresanto, Padrón, Palache, Palma, Pardo, Paredes, Pujol, Pulgar, Querido, Quersi, Quirós, Rabatoso, Ramírez, Ramos, Ravel, Rebasa, Redó, Reina, Rossel, Rosales, Ros, Saavedra, Sabina, Sagarra, Salama, Salami, Salgado, Salom, Sánchez, Sánchez de Toledo, Sánchez de Ocaña, Sastre, Tabora, Talavera, Tamarit, Tarazona, Tejedor, Terrasa, Thomas, Toledo, Úbeda, Ulloa, Urrea, Usua, Usillo, Vaamonde, Valderrama, Valencia, Valera, Valdellós, Valeriola, Valero, Vall, Valls, Vaquero, Ventura, Zaforteza, Zaragoza, Zarco, Zayat, Zorrila, etc.
More than ten thousand Spanish surnames are of Jewish descendants, including Colom, or Christopher Columbus. And Sánchez (ending in -ez) is not of germanic origin.
As for the inffluence of the Ten Commandments in Law, as I said our legal texts drink directly from Roman and German legal institutions. The romans also forbid to kill your neighbour etc... I've never read that the Jewish religion inffluenced our law codes. But then I could be proved wrong. Good luck with your essay !
http://www.revista-raices.com/enred/enred.php?art=geneal2