Order by name Order by year Order by year reverse Order by Type Order by Sammet category

Explore languages for Spain
Excalibur    1988     Spain    
&-Prolog    1990   String and List Processing Horn clause   Spain    
CIAO    1994   Experimental and other Horn clause   Spain   Distributed And/Or parallel prolog 
ACE    1994   Experimental and other   Spain   Parallel logic language 
&ACE    1995     Spain    
PROLIX    2000     Spain    
O'Ciao    2002     Spain