What were 4 new legislations passed by the republican congress during the civil war

For the next 4 years the nation would experience a terrible civil war. Now under Republican control, Congress played an important role in deciding the outcome of this struggle. It passed legislation increasing the Union Army and Navy, and it enacted the nation's first Federal income tax.

the real gdp increased by 4.1%

explanation:

might not be right, i think i'm correct, but i might be thinking of last quarter

answer; i believe its (cpr);