I think that's because believable action is based on authenticity, and accuracy is very important to me. I always spend time researching my novels, exploring the customs and attitudes of the county I'm using for their setting.
Because of recent improvements in the accuracy of theoretical predictions based on large scale ab initio quantum mechanical calculations, meaningful comparisons between theoretical and experimental findings have become possible.
We know something of the history of the spread of Christianity, but much passed from recorded memory and much was transmitted by tradition whose accuracy has been repeatedly questioned.
