Columbia subject headings:
Harvard subject headings:
America--Discovery and exploration--Spanish--Chronology.
America--Discovery and exploration--Spanish--Sources.
Hispanic Americans--History--Chronology.
Hispanic Americans--History--Sources.
Spaniards--United States--History--Chronology.
Spaniards--United States--History--Sources.
Princeton subject headings:
Hispanic Americans--History--Chronology.
Hispanic Americans--History--Sources.
Spaniards--United States--History--Chronology.
Spaniards--United States--History--Sources.