Ngram Viewer on "Enumerated Powers" v "Fundamental Rights"

[Howard Gillman]

http://ngrams.googlelabs.com/graph?content=fundamental+rights%2C+enumerated+powers&year_start=1800&year_end=2000&corpus=0&smoothing=3 

See also:

http://prq.sagepub.com/content/47/3/623.abstract (sorry for the shameless plug of a very old article!)

What other Ngram searches might prove especially interesting or illuminating for the field of constitutional development?

Howard