The following divided Persia Britain and "MOTHER" Russia and the Shah of Persia. :) ////// dont add MOTHER in the answer.
By the eve of the Civil War in mid-1861, with the addition of Oregon (1859) and Kansas (1861), the number of free states had grown to 19 while the number of slave states remained at 15.
They settled in river valleys because they wanted their crops and soil to be rich and eaiser to water their plants.
Better weather. Crops such as wheat and tobacco
