Which is the oldest civilisation in the world among Egyptian, Romans or Chinese?

 The oldest civilization among the Egyptians, Romans, and Chinese is the ancient Egyptian civilization. Ancient Egypt is widely considered one of the earliest civilizations to emerge along the Nile River in northeastern Africa. The civilization's roots can be traced back to the Early Dynastic Period (c. 3100–2686 BCE), with the unification of Upper and Lower Egypt under the rule of King Narmer (also known as Menes).

The ancient Egyptian civilization flourished for thousands of years, enduring through various periods such as the Old Kingdom, Middle Kingdom, and New Kingdom, among others. It left a lasting impact on art, architecture, literature, religion, and various aspects of culture. The pyramids of Giza, the Sphinx, and the hieroglyphic writing system are some of the iconic features associated with ancient Egypt.

The Roman civilization emerged later, starting with the legendary foundation of Rome traditionally dated to 753 BCE. The Romans built a powerful and influential civilization that peaked during the Roman Republic (509–27 BCE) and later the Roman Empire (27 BCE–476 CE). Rome became a major force in the Mediterranean world, shaping politics, law, architecture, and engineering.

The Chinese civilization, with a history dating back to ancient times, is one of the world's oldest continuous civilizations. The Xia Dynasty is traditionally considered the first dynasty in Chinese history, but its historicity is debated among scholars. The Shang Dynasty (c. 1600–1046 BCE) is generally accepted as the earliest dynasty with archaeological evidence.

In summary, among the Egyptians, Romans, and Chinese, the ancient Egyptian civilization is considered the oldest, with roots extending back to the Early Dynastic Period around 3100 BCE.