In 1948, President Harry S. Truman used an executive order to integrate the armed forces and stop segregation based on color. It was also known as executive order number 9981. This order was passed on 26th of July in the year 1948. The segregation based on color, religion, national origin or race would be stopped and equal opportunity provided to all.
Push factors are things that force you out of your current living situation(e.g can't support family), and pull factors are things that are temptations to move away.(e.g better healthcare)
The Emancipation Proclamation was a wartime measure designed to destabilize the South. The proclamation granted freedom to all enslaved individuals in the states under Confederate control if they failed to return to the Union within 30 days. It also signaled that one of the outcomes of a potential Union victory would be the abolition of slavery.