Secission is the official leaving of an union or organiation
North Carolina was the first state to secede.
After the southern states seceded the civil war started
Professor plum is showing the detached style of listening. This type of listener are intellectually not present in a conversation although they are present physically. In the situation described clearly the professor was not listening to what Roberto was saying.
number 3: Migration of people
A general by the name of Gaius Marius began to change the army. He was afraid that Rome was going to be attacked by barbarians. The Romans called everyone who wasn't a Roman or Greek a barbarian. He began to let poor plebeians join the army. From now on, generals paid their soldiers. The soldiers were now loyal to their general, not the Republic. Eventually, generals like Julius Cesar came to <span>power. He was the richest man in Rome, and his army was loyal to him.
Hope this helps :)</span>