(I used google translate but I hope this helps) A medida que el agua fluía hacia las ciudades, se usaba para beber, irrigar y para suministrar cientos de fuentes y baños públicos.
By boats and ships not sure though
Abraham Lincoln wanted to see a united America, he wanted to unite the North and South. at the time there was a lot of segregation, that is one of the reason why there was a Civil War between the states.
Answer: Both
Explanation: It makes the information more reliable.