Missing skull confuses scientists

Link : http://uk.news.yahoo.com/041014/344/f4jis.html

Scientists trying to reconstruct the features of Petrarch, the great 14th century Italian poet, got a shock when they dug up his bones in a village near Padua.

Forensic tests show that the skull in his grave belonged to a woman who died 25 years before Petrarch was born.

Now archaeological sleuths are scratching their own heads, wondering how this could have come about.