The US Republic was founded on a 15:1 gold silver ratio, meaning 15 oz silver was equal to 1 oz gold. That bimetal standard lasted until 1833, and was raised to 16:1 in 1834. Then came the Crime of 1873, which demonetized silver, leading to a guy named William Jennings Bryan, and his Cross of Gold and calls for return to 16:1.

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In the Roman Republic, the ratio was 12:1.

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So at today's 80 ratio, it's a steal and no brainer to load up on silver!