Why do many historians regard the printing press as the most important invention of the past millennium?

How does the pyramid of giza include art, science, math, or a need for infrastructure?

What are the biggest challenges facing the average american citizen today? explain.

Hich answer supports the statement, "the state constitution is more detailed than the u.s. constitution"? a) the u.s. constitution was created after state constitutions had been established. b) the u.s. constitution only exists because the state constitutions allowed it to be created. c) the articles in the state constitution do not deal with amendments like the u.s. constitution does. d) the articles in the state constitution deal with more specific issues than does the u.s. constitution.