On 1 January 1986 Spain<span> and </span>Portugal<span> acceded to the European Economic Community</span>
Answer:
It resulted in the death of General Custer and all 200 of his troops.
It would be "Whether a new state or territory should enter the Union as Free or Slave" that had the most impact on the Civil War, since the North was strongly against the spread of slavery, while the South was in favor of it.
"<span>C. The Roman Republic was strengthened by the newly-empowered plebeians" would be the best description from the list, but this was not a universal truth. </span>