Star-signs!

[Ramesses II]

Indeed there have, very well documented by serious scientists. Although most cases seem to occur in societies where reincarnation is accepted in culture (India of course and among the Druse in Lebanon), they also occur elsewhere. Of course, experiences are best documented because the level of acceptance is much higher.
One very well-known case is of a low-born girl who was able to prove his previous existance as a high-born male (I think it was) until being murdered. His 'old' family accepted him/her back again. Very weird if you're not used to such way of thinking.

I've seen a documentary once on National Geographic Channel about a 6 year old boy in that area, who asks his parents to visit some complete strangers on the other side of the country. Appearantly the boy was in a previous life a football star and family to those strangers. They confronted him with his sister from his past life, and he could tell this that happened years before he was born, which were true (told by the sister).