After creating a hypothesis, what is the best step in mary and jim's investigation

he conquered constantinople and ended the byzantine empire., ottoman sultan called the "conqueror"; responsible for conquest of constantinople in 1453; destroyed what remained of byzantine empire. the successor to humayan, after his sudden death.

natural resources to provide fuel and raw materials for manufacturing

no reinforcements were used by union forces, thinking they weren't needed.

the north had thought, going into the civil war, that victory would be relatively easy to achieve.   according to the history channel, the outcome of the battle (a victory for the south) "sent northerners--who had expected a quick, decisive victory--reeling."  

the first battle of bull run is called the first battle of manassas by southerners, after the city near where it was fought.   the battle took place in   virginia in july of 1861.   the confederate forces received reinforcements during the battle and that them in achieving the victory.