Perhaps you should try some spelling variations:
abierto del » abierto el, abierta de, abierto en
abierta a » abierta y, abiertas 1, abierta de
del 90 » del 80
90 del » 90 el, 10 del, 90 de
a 1860 » la 1860, a 1850, a 1869
a 1820 » a 1920, a 1850, a 1827
mar a » mar y
a 30 » al 30, 1 30, a 10

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "(( Cabildo abierto del 90 del mar a 1860 ) OR ( Cabildo abierta a 30 de mar a 1820 ))~".
• Adding a wildcard symbol may retrieve word variants: (( Cabildo abierto del 90 del mar a 1860 ) OR ( Cabildo abierta a 30 de mar a 1820 ))*.