Conversation so far:
where did the industrial revolution first begin and why
The change from an agrarian economy to industry and machine manufacturing. This process began in Britain in the 18th century and from there spread to other parts of the world.
when did the second Industrial Revolution begin
Historians have labeled the years from 1870-1914 as the period of the Second Industrial Revolution. The Second Industrial Revolution witnessed the expansion of electricity, petroleum and steel.

Question: what was the impact
Self-contained rewrite: what was the impact of the Second Industrial Revolution