Note that it is not the value in each field in the primary key that must be unique, but it is the combination of values in all fields that make up the primary key. The C/SIDE database system does not support tables that do not have any keys.
Spanish Civil War ('36-'39). The outbreak of civil war in Spain in 1936 was viewed in Europe and the United States as an ideological struggle between the forces of fascism, led by General Francisco Franco, and the forces of republicanism, called Loyalists.
Despite the Spanish American War being fought in 1898, many important Spanish American War records still exist. The Spanish American War started in 1898 after an explosion on a U.S. ship in Havana Harbor, the USS Maine, was attributed to Spanish sabotage. Although the Spanish American War lasted only 10 weeks, it resulted in the defeat of the Spanish Empire and gave Americans control of Guam, the Philippines and Puerto Rico.