The First Colored Senator and Representatives, Currier & Ives lithography, 1872
The First Colored Senator and Representatives, Currier & Ives lithography, 1872

Marble cutters working on column shafts, east front of the Capitol, 1860.
Marble cutters working on column shafts, east front of the Capitol, 1860.

Traders opened the Santa Fe Trail from Missouri to the Southwest in 1822.
Traders opened the Santa Fe Trail from Missouri to the Southwest in 1822.
