Original sentence: A number of Jewish families arrived after the Anti-Semitic violence in Morrocco in 1956, and soon established informal house synagogues.After the Republican government was defeated by Franco’s forces) in the Spanish Civil War, Civil War (1936-39),  Catholicism was proclaimed the official State religion and the synagogues were closed.Although Jews had begun to return to Spain in the nineteenth century, and established a synagogue in Madrid in 1917.The present synagogue was built in 1968, after  after passage of the "Religious Freedom Law" of 1967
Edited sentence: A number of Jewish families arrived after the 1956 Anti-Semitic violence in Morocco, and soon established informal house synagogues.After the Republican government was defeated by Franco’s forces in the Spanish Civil War, Civil War (1936-39),  Catholicism was proclaimed the official State religion and the synagogues were closed.Jews began to return to Spain in the nineteenth century, and established a synagogue in Madrid in 1917.The present synagogue was built in 1968, after passage of the "Religious Freedom Law" of 1967