In 1857, the final crisis of the free banking era of international finance began, as American banks suspended payment in silver, rippling through the very young international financial system of central banks. In 1861 the US government suspended payment in gold and silver, effectively ending the attempts to form a silver standard basis for the dollar. Through the 1860–1871 period, various attempts to resurrect bi-metallic standards were made, including one based on the gold and silver franc; however, with the rapid influx of silver from new deposits, the expectation of scarcity of silver ended.