Carl Jung wrote a piece on "acausal coincidence" ie: unrelated events prompting in the observer a feeling that greater forces are at play than his or her powers of logical deduction will enable him to properly interpret. That certainly happened today , Peter Heather invoked York Minster Crypt as a place redolent with historical atmosphere (and Vindolanda, Birdoswald and Tullie) -just as I was searching for photos of the Minster in relation to the Roman Fortress and the original ground levels in Eboracum . Northern Neil had kicked a thread off about the walls of the Colonia and its possible intergration into the medieval layout, hence my delving. Meanwhile I posted another item about the analysis of remains from an apparent mass execution in Eboracum (archaeology folder),possibly due to the very unpleasant Geta.