Answer:
The Roman Roads, which extended all over the Roman Empire, and were built as the Empire expanded, helped the military expansion of the Roman Republic simply because they made logistics easier: military goods such as weapons, horses, and the soldiers themselves, could move around more quickly, making invasions of foreign territories more rapid, and allowing for a faster replenishment of troops in needed cases.
 
        
             
        
        
        
I am not 100% on this so you may want to fact check my response: 
Lusitana - it was torpeded by German U-Boats and it sank in 18 minuntes... i also believe it was a passenger ship which also really upset the US
submarine- new 
        
             
        
        
        
It wasn't so much the Civil War, but the expansion of the United States that led to the Civil War, that brought about the Second Industrial Revolution, since this expansion brought a need for massive amounts of railroad materials. 
        
             
        
        
        
A the sixteenth amendment
        
             
        
        
        
Answer: The Senate found him not guilty of the charges against him.
Explanation: Clinton's second term was particularly marked by the extensive media coverage of the sexual scandals in which he was involved, mainly linking him to White House Scholar Monica Lewinsky, a graduate in Psychology who had intimate relations with the president. On August 6, 1998, she became the first witness to refute the affidavit of a president of the United States, in which he denied having had sexual relations with her. The prosecutor accused the president of eleven serious crimes worthy of impeachment, for perjury, abuse of power and obstruction of the work of justice. On October 8, the Congress voted 258 to 176 votes in favor of the impeachment process. After a few months, Clinton admitted to having maintained an "improper physical behavior", although he denied having committed perjury.
On February 12, 1999, the Senate declared Clinton "not guilty" of the crime of perjury by 55 to 45 votes in favor, and of the crime of obstruction of justice with a tie to 50. For culpability, a majority of two thirds was required.