I believe its only known as the Ruy Lopez in the USA ? Maybe Canada too ? In Europe everyone calls it the Spanish opening .
It's always been called Ruy Lopez throughout Great Britain and I believe France as well. It's just that recently, everyone seems to be changing the old names. I think a lot has to do with the slow adoption of the Soviet nomenclature, beginning when they dominated chess after Alekhine, and only now making a dent here in the USA.
I much prefer to call it the Spanish. I am less happy to call Petroff's Defense the Russian Defense, but I do prefer that openings not be named after people, but that's just my own caprice.
Does anyone know of any English language chess book written with DN that refers to the opening primarily as the "Spanish"? I'd like to say there isn't one, but I'd set myself up for the existence proof trap.
In a way he did create it. His anaylze of the line's set the foundation for some of what we know today.
Lopez recommended the line that bears his name to try to discredit Damiano, but his analysis was poor and pithy and the popularization of the Spanish Game probably was dependant on people overlooking Lopez's original lines.
Here's what the OCC had to say:
