Nice graph showing the 69' Mets caused persistent debasing of the currency. What else could it have been?

This graph shows inflation, as measured by the Consumer Price Index (CPI), from 1776 to Present.  Don't ask me how they got data from that far back. 

The creation of the Federal Reserve is widely cited as the downfall of the value of the dollar.  Guess I see some inflation post 1913, especially after WW II.

However, even a high school economics teacher can see that in 1970 when the dollar went off the "Gold Standard" did we see an acceleration of inflation (or was it the 69' Mets?).  Co-incidence?  Someone smarter than me (everyone out there) please tell me.  

Source: HERE