The Civil War (1861-1865) was a brief but tragic disruption in the unity of the nation.Since that time the United States has evolved into a vast, diversified economic power.

• 内战(1861-1865年）在国家的联盟内是一次短暂的但悲惨的破坏，自那时以后美国已发展成有巨大的、多方面的经济强国。