Pricing in Gold

This showed up in my FB feed: charts showing the value of various commodities in terms of gold over time.  The one showing the value of the dollar is most telling.  For almost 200 yrs it was nearly constant, except when FDR devalued it in 1934, then from 1970-1980 it tanked, and declined greatly again from 2000-2010.  The 1934 devaluation was 41%—that should put the rest of the chart in perspective.