The Agricultural Revolution resulted in increased labor and land productivity, catapulting population growth and decreasing the agricultural portion of the labor force. What resulted was an urban workforce, paving the way for the Industrial Revolution. Moving from hand production methods to machine tools and factories, rapid industrialization led to increases in average incomes for workers. The Industrial Revolution created the modern-day labor market model. A Third Revolution came about in the mid-twentieth century, coined the "Information Revolution." It heralded computerization and electronic technology. Today, we are experiencing the Fourth Industrial Revolution, which focuses on artificial intelligence (Al), robotics, and various combinations of technologies. This revolution is characterized by a fusion of many technologies and is evolving exponentially faster than past revolutions.