I need to see the photo to come up with an answer
The city was renamed Petrograd in 1914, at the beginning of World War I, because it sounded less German, was then named Leningrad after the death of Vladimir Lenin in 1924, and again became St. Petersburg in 1991 when the Soviet Union collapsed.
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Because china went from using paper money to silver coins
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Impacts can result in erosion, sinkholes, loss of biodiversity, or the contamination of soil, groundwater, and surface water by the chemicals emitted from mining processes.
When the bomb was finally detonated atop a steel tower, an intense light flash and sudden wave of heat was followed by a great burst of sound echoing in the valley. A ball of fire tore up into the sky and then was surrounded by a giant mushroom cloud stretching some 40,000 feet across. With a power equivalent to around 21,000 tons of TNT, the bomb completely obliterated the steel tower on which it rested. The nuclear age had begun.
