Main ideas
a. by what land bridge did
some ancient people migrate
to north america, and how
was it created? (h12)

Beringia, The Bering Straight froze and ancient peoples crossed

Explanation:

i confess that there are several parts of this constitution which i do not at present approve, but i am not sure i shall never approve them: for having lived long, i have experienced many instances of being obliged by better information or fuller consideration, to change opinions even on important subjects, which i once thought right, but found to be otherwise. it is therefore that the older i grow, the more apt i am to doubt my own judgment, and to pay more respect to the judgment of others.