Archaeologists have uncovered charred sycamore wood preserved for 2,600 years. The growth rings inside may allow researchers to date the destruction to within a single decade. This is, in fact, the second time that roof beams from this specific building have been found at the Givati Parking Lot excavation site. The science: Dating to within a decadeWhat makes this discovery scientifically extraordinary is the unusual number of growth rings preserved in the wood. Here, in the City of David, we found thick beams with many rings, offering significant research potential — with more growth rings enabling higher dating resolution.