Construction has, in some way or another, been a critical part of life in human society. From our earliest days, humans have needed shelter and have had to use tools to survive. As humans evolved, they developed new tools and skills and improved themselves by using knowledge from previous generations. Inventions have been a part of the human fabric throughout history. Innovations in construction since the Stone Age have shaped our cities and communities as we know them. Today, we present many of humanity's vital construction inventions.