Tools probably as they show more of the history. They're primary resources.
Architecture may show more religion and political institutions though.
        
                    
             
        
        
        
The Northerners were concerned that the commissioners would think only about the money involved and the slaves would be denied their rights because of this process. 
        
             
        
        
        
Answer:
episodic
Explanation:
Episodic memory: In psychology, the term "episodic memory" is described as an individual's memory related to day-to-day events, for example, associated emotions, times, contextual phenomena including where, why, who, what knowledge and location geography etc. that can be stored by him or her explicitly or in conjured form. Episodic memory is referred to as the collection of an individual's past & personal experiences that has happened at a specific place and time.
In the question above, Alessandro has suffered losses in his episodic memory.
 
 
        
             
        
        
        
The Wright brothers flew their first plane in 1903 and the first continental railroad opened in 1869 if you subtract those two you would get 34 years after