Innovations in technology, agriculture, and commerce happened because people wanted to make work easier and faster. Technology like machines helped produce goods quickly, while new farming tools improved crop growth. These changes caused more food to be available and products to be sold in markets, which led to economic growth. As a result, many people moved to cities for jobs, and trade between regions increased. Vocabulary words include innovation (a new idea or method), commerce (buying and selling goods), and economy (the system of money and trade).