Part of a man's DNA. It is passed from father to son, and women don't have it. See 'Some Notes on Archaeology'.
Y Chromosome
Fact of the Day
James Garfield, the twentieth president of the USA, could write in Greek with one hand and at the same time write in Latin with the other.
Quote of the Day
"I have no political ambitions for myself or my children.
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~ Joseph P. Kennedy
On This Day
1787 The 'First Fleet' of 11 ships carrying convicts to Australia left England.
1888 Slavery was abolished in Brazil.