Cloning: helping the childless or meddling with nature?

PRETEND you’re doing the Leaving Certificate. Take the years 1215, 1848, 1917, 1969, 1996 and 2003. What have they all got in common? Give up?

They were all dates of revolution in one form or another, formative years in the story of mankind when the path of human development took a quantum leap.

July 5, 1996, is not a date we normally associate with revolution but it should be: it was the day on which Dolly the Sheep was born.