Around 11,000 bce, one of the earliest developments which led to managed food production was

One of the earliest developments in around 11000 BCE was The Neolithic Revolution. It was a major change in human lifestyle when many cultures in the world transferred from hunting and gathering to agriculture which allowed man later the domestication of plants and animals and led to manage the food production. As a result the human population started growing largely, this was the later part of Stone Age. 

i really do want to but i just don't know it i'm so sorry : (

answer; i believe its (jade); good luck