Could I order a new chequebook, please? <a href=" http://www.motelk.com/erythromycin-ophthalmic-ointment-generic-name.pdf#february ">is erythromycin a generic drug</a> To create a more reliable timeline, archaeologists based at the University of Oxford have developed the most comprehensive chronological analyses of Early Egypt artifacts yet based on a computer model of existing and newly measured radiocarbon dates. The analyses suggest the rise to statehood occurred between 200 and 300 years faster than previously thought, beginning between 3800 B.C. and 3700 B.C., rather than the past estimate of 4000 B.C. The findings, which also suggest the preceding Neolithic period lasted longer than thought, are detailed Sept. 4 in the Proceedings of the Royal Society A.