What innovation allowed humans to settle permanently?

Approximately 10,000 years ago, humans discovered that they could cultivate the land and grow crops to feed themselves, as well as tame and raise animals for food. This innovation, known as the Agricultural Revolution, allowed humans to stop their constant search for food by means of hunting and gathering, and instead allowed them to build permanent settlements around farming and animal husbandry. The Agricultural Revolution turned the process of procuring food from a 24-7 job into a more manageable, less time intensive pursuit.
The extra time left over allowed these first non-nomadic humans to create better tools, devise mathematics and come up with philosophies and religions to explain the world around them. Soon, humans began to use written language in order to safeguard their knowledge and build upon it. The Agricultural Revolution also brought about efficiencies that allowed humans in settled villages to turn their expertise to activities other than producing food. This development is known as the Division of Labor. This change in turn led to trading in early barter economies, the building of the cities, and ultimately, the so-called birth of civilization.