What is rheumatoid arthritis? Rheumatoid arthritis is an autoimmune disorder that causes chronic inflammation of joints. Rheumatoid arthritis (RA) tends to begin slowly with minor symptoms that come and go, usually on both sides of the body, and progress over a period of weeks or months. Symptoms of this chronic disease vary from person to person and can change from day to day.
Sahelanthropus was the earliest, dating 7-6 million years ago. Orrorin lived about 6 million years ago, while Ardipithecus remains have been dated to 5.8-4.4 million years ago. At present, the vote is still out as to whether any of these three primates were in fact true hominins and if they were our ancestors.he earliest australopithecines very likely did not evolve until 5 million years ago or shortly thereafter (during the beginning of the Pliocene Epoch) in East Africa. The primate fossil record for this crucial transitional period leading to australopithecines is still scanty and somewhat confusing.
Homo Erectus, who lived around 950,000 B.C., was the first human found in France. With the end of the Ice Age, prehistoric man began to settle down in more permanent agricultural settlements (Neolithic Revolution). The Celts came from Central Europe and settled in Gaul around 2500 B.C.