Final answer:
The Neolithic Age ended around 3,000 BCE and is marked by the Neolithic Revolution, which saw the advent of agriculture, domestication of plants and animals, and the development of settled communities and monumental architecture.
Step-by-step explanation:
The Neolithic Age, or New Stone Age, ended around 3,000 BCE. This period is marked by the significant event known as the Neolithic Revolution, which was the transformation from a nomadic lifestyle of hunting and gathering to one of agriculture and settlement, establishing the foundation for modern civilization. This revolution included the domestication of plants and animals, leading to the development of farming communities, advancements in tool-making, and the erection of monumental structures like Stonehenge.
This period saw a shift from hunting and gathering to a settled agricultural lifestyle, where people began cultivating crops and domesticating animals for food.