What happened during the Mesolithic period?

During the Mesolithic period, also known as the Middle Stone Age, people transitioned from a nomadic lifestyle to more settled communities, developing new tools such as microliths for hunting and gathering. It was a time of climate change, rising sea levels, and the extinction of some megafauna species. The Mesolithic period laid the foundation for the advances in technology and social organization that would characterize the Neolithic period.