- 
  
   This shift means stronger steel but also fossil fuels being put on the stage. This shift means stronger steel but also fossil fuels being put on the stage.
- 
  
   The steam engine revolutionized ships and trains. The steam engine revolutionized ships and trains.
- 
  
   This is the start of a huge textile industry, poor working conditions, and rapid urbanization. This is the start of a huge textile industry, poor working conditions, and rapid urbanization.
- 
  
   William Hart dug the first gas well in the US in Fredonia, New York. William Hart dug the first gas well in the US in Fredonia, New York.
- 
  
   Coal allowed inferior alloys to be burned off and that caused stronger metal. Coal allowed inferior alloys to be burned off and that caused stronger metal.
- 
  
   This is the end of a huge textile industry, poor working conditions, and rapid urbanization. Now we see the benefits and drawbacks this revolution caused. This is the end of a huge textile industry, poor working conditions, and rapid urbanization. Now we see the benefits and drawbacks this revolution caused.
- 
  
   Edwin Drake created the first oil well in the US in Titusville, Pennsylvania. Edwin Drake created the first oil well in the US in Titusville, Pennsylvania.
- 
  
   This discovery would give way to nuclear power. This discovery would give way to nuclear power.
- 
  
   The world's first windmill farm was installed in the US in southern New Hampshire. The world's first windmill farm was installed in the US in southern New Hampshire.
- 
  
   This was a destructive nuclear accident that made the world scared of nuclear power. This was a destructive nuclear accident that made the world scared of nuclear power.