Judging how old an archaeological find is by knowledge of other items found. See 'Some Notes on Archaeology'.
Relative dating
Fact of the Day
In France around the year 1000, a pale complexion, squeamishness and vegetarianism were all signs of heresy.
Quote of the Day
"Total abstinence is so excellent a thing that it cannot be carried to too great an extent. In my passion for it I even carry it so far as to totally abstain from total abstinence itself.
"
~ Mark Twain
On This Day
1509 Pope Julius II, in his attempt to increase the power of the Church and to reduce Venice to a fishing village in the process, excommunicated the entire state.
1521 Ferdinand Magellan, the Portuguese explorer who organised the Spanish expedition to the East Indies, was killed by local tribesmen in the Philippines.
1667 A blind and impoverished (thanks to the restoration of the monarchy) John Milton sold the rights to his magnum opus for £10. As soon as it was published, it was hailed as a masterpiece.
1828 London Zoo opened its doors to the public for the first time.
1865 The American steam boat Sultana exploded and sank on the Mississippi, killing between 1,500 and 1,800 people. It remains one of the worst maritime events in US history.
1941 Athens fell to the German army, after a Blitzkrieg invasion of Greece that had lasted for less than a month.
1945 Italian fascist dictator Benito Mussolini and his mistress Claretta Petacci were caught trying to escape to Switzerland. They were summarily executed the following day.
1968 The Abortion Act, which allowed women abortions on certain medical grounds, came into effect.