A burial monument with human remains thought to be about 4,500 years old has been discovered in East Yorkshire.Parts of a Roman road and a burnt mound were also discovered during a £5m project to build a 5.2km (3.2 miles) sewer near Full Sutton.Ecus Archaelogy, working on the site for Yorkshire Water, said the three sites give a glimpse into the prehistoric and early historic past of the area.The analysis stage of the project is yet to start and the sewer is now being laid.The small circular burial monument was discovered in the vicinity of Full Sutton with the human...