The Confederate government initially wanted to finance its war mostly through tariffs on imports, export taxes, and voluntary donations of gold. After the spontaneous imposition of an embargo on cotton sales to Europe in 1861, these sources of revenue dried up and the Confederacy increasingly turned to issuing debt and printing money to pay for war expenses. The Confederate States politicians were worried about angering the general population with hard taxes. A tax increase might disillusion many Southerners, so the Confederacy resorted to printing more money. As a result, inflation increased and remained a problem for the southern states throughout the rest of the war. By April 1863, for example, the cost of flour in Richmond had risen to $100 a barrel and housewives were rioting.