Decades: 660s BC 650s BC 640s BC 630s BC 620s BC - 610s BC - 600s BC 590s BC 580s BC 570s BC 560s BC
Significant People
... / Pallidium FAQ maintained by Professor Ross J Anderson on his Web site at www.cl.cam.ac.uk/~rja14/tcpa-faq.html/ for a clear discussion of two prominent proposals. ...