Do you know of any experiments where they have tested the 14carbon method? Maybe dating things from recent recorded history (such as classical greek artifacts)
Some of the very earliest carbon 14 work ever done - early 1950's or maybe even the 40's - was on Egyptian artifacts of known age. They came out quite close, even with the very crude methods available back then. I don't remember where I read this, though.
Much more recently, argon-argon dating was used on ash from Pompeii and came up with 1925 +/- 94 years for an age that history said was 1918 years. Close, yes? That one is Renne, et al.
Science, vol 277 pp 1279-1280 (1997) - it's online at
Science | AAAS if you register and then hunt it down in their index.