When you hear the term “gig economy,” you probably think of Uber or Lyft or Postmates - companies that have used apps to disrupt industries and create an army of 1099 workers. But according to Louis Hyman, a Cornell University historian and author of Temp: How American Work, American Business, and the American Dream Became Temporary, the gig economy is a lot bigger than Silicon Valley. And it has a much longer history than you might think.