Following the abdication in February 1873 of the Spanish monarch, King Amadeo, the only Spanish king from the Italian House of Savoy, what happened immediately afterwards in Spain?
The Spanish throne had been vacant since 1936, and on 22 November 1975, Juan Carlos was designated King. What event caused this?
In 1864, as retaliation for an incident the previous year which involved death or injury to about 5 Spanish citizens, Spain took the first tangible aggressive steps in what became what?