What was one reason why many white Southerners opposed Reconstruction? They felt Northerners were getting rich at their expense.
They feared progress made since the Civil War ended would be impeded. They were concerned it would cause race-related violence against former plantation owners. They preferred to enact the polices of the Republican Party, which favored the South.
After the American Civil war (1861 -1865) and the victory of the Union, a process of Reconstruction (1865-1877) took place. This process aimed to transform the 11 ex-confederated states in a "republican form of government" via laws and constitutional amendments.
The Southerners felt Northerners were getting rich at their expense because since the end of the war many moved to the south as social reformers. Several of them were businessmen who acquired or rented plantations and became wealthy landowners, choosing freedmen to do the labor. Following the Civil War, Northerners often obtained plantations at fire-sale rates. Because of this, they were commonly considered to be taking advantage of those living in the South.
I think you mean the Golden Spike which is the ceremonial final spike driven by Leland Stanford to join the rails of the First Transcontinental Railroad across the US connecting the Central Pacific and Union Pacific railroads in 1869 in Promontory, Utah.
Its leaders knew it could not win the war. The United States, the British Empire, and China had called for the unconditional surrender of the Japanese armed forces in the Potsdam Declaration (July 1945) but Japan didn't.