<span>The Reconstruction was the period of American History directly after the Civil War in post-slavery America. The promise of change for newly freed slaves fell short, with many African Americans continuing to work in slave-like conditions (sharecropping) and encountering severe discrimination.</span>
Answer:
Gold rush and mining opportunities (silver in Nevada)
The opportunity to work in the cattle industry; to be a “cowboy”
Faster travel to the West by railroad; availability of supplies due to the railroad.Explanation:
There were multiple spaces where three multiple skeletons have been uncovered in a single grave in the past. When we find mass graves of skeletons from the past, this means we've likely found a place where people have been killed.