Why Coke Cost A Nickel For 70 Years 
>In 1886, a bottle of Coke cost a nickel. It was also a nickel in 1900, 1915, and 1930. In fact, 70 years after the first Coke was sold, you could still buy a bottle for a nickel.<p>Without getting into a huge argument about the <i>causes</i> of inflation, it's really weird that they didn't even mention the word inflation until almost the very end.<p>In 1886, an ounce of gold cost $20.65 and in 1930 an ounce of gold cost $20.65. 70 years after 1886 (1956) it had increased to $34.99 (a 70% increase).  But surely a large part of the reason that a Coke cost a nickel for 70 years was that there was no real inflation for a large part of that time, during which time Coca-Cola also had the opportunity to significantly increase production and cost efficiency.