Around 7000 years ago, human civilizations were beginning to develop in various parts of the world. In the Middle East, the Neolithic era was underway, and people were transitioning from hunting and gathering to agriculture and animal domestication. This period saw the emergence of early civilizations such as Sumer, which developed in the region that is now Iraq. In Europe, the Megalithic culture was beginning to develop, characterized by the construction of large stone structures such as Stonehenge in England. In Asia, the ancient civilization of the Indus Valley was thriving, with cities such as Harappa and Mohenjo-daro in what is now Pakistan. Additionally, in the Americas, the Olmec civilization was emerging in what is now Mexico, known for their large stone heads and advanced art and architecture.