What are the two main types of sources that a historian used

The physical feature that makes up part of the border between canada and the united states is the

Mark s. fleisher identified which traits as essential to effective work in corrections?

What factor contributed most to the beginning of the women’s rights movement in the united states during the mid 1800s? a dramatic increase in women’s participation in the workforce b a shift in social attitudes brought on by increased sectional tensions c the experience of gender discrimination within reform movements d the granting of voting rights to african american men