National importance is a key aspect in the proposed overall NHA story . Determining national importance requires an analysis of study area resources to determine whether a strategic assemblage of related resources exists that are capable of supporting and expanding upon interpretation of the region ’ s significant stories .
A “ strategic assemblage of resources ” is a concentration of resources that together support the statement of significance . To comprise a strategic assemblage , these resources must be directly associated with the significance statement and themes to enable an authentic experience of the national story . The resources must also be fully documented to confirm the resource ’ s significance and integrity . They must be geographically close to one another in order to form a cohesive landscape , be efficiently and comprehensively managed by one coordinating entity , and enable interpretation of the area of significance .
Existing landscape elements represent and contain identifiable assemblages of resources with lasting integrity and associated with one or more of the following topics :
1 . Important historical periods of the nation and its people .
2 . Major events , persons , and groups that contributed substantially to the nation ’ s history , customs , beliefs , and folklore .
3 . Distinctive cultures and cultural mores .
4 . Major industries and technological , business , and manufacturing innovations / practices , and labor advancements that contributed substantially to the economic growth of the nation and the well-being of its people .
5 . Transportation innovations and routes that played central roles in important military actions , settlement , migration , and commerce .
6 . Social movements that substantially influenced past and present-day society . 7 . American art , crafts , literature , and music . 8 . Distinctive architecture and architectural periods and movements . 9 . Major scientific discoveries and advancements .
10 . Other comparable representations that , together with their associated resources , substantively contributed to the nation ’ s heritage .
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