Well, I cant give you the answer, but I can tell you that the Religion started in Saudia Arabia... this should give you a pretty clear hint! ;)
The war ended in Spring, 1865. Robert E. Lee surrendered the last major Confederate army to Ulysses S. Grant at Appomattox Courthouse on April 9, 1865.
Well a republic is a state in which supreme power is held by the people and their elected representatives, and which has an elected or nominated president rather than a monarch and a democracy is a system of government by the whole population or all the eligible members of a state, typically through elected representatives.
It is located in Stillwater, Oklahoma.