Cycles in the Earth's climate, caused by changes in its relationship with the Sun.
The Milankovitch Cycles
Fact of the Day
A Templar knight, as well as being chaste and vowing to avoid luxury, slept for just four hours a night, attended up to seven masses a day, and fasted three times a week.
Quote of the Day
"Untutored courage is useless in the face of educated bullets.
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~ George S. Patton, US general
On This Day
52 BCE The Siege of Alesia formally came to an end when Vercingetorix, leader of the Gaulish forces, surrendered to Julius Caesar.
1283 Dafydd ap Gruffydd, the last independent ruler of Wales, was hanged, drawn and quartered on the orders of Edward I.
1691 The Treaty of Limerick was signed, ending the Williamite War in Ireland between the Jacobites and the supporters of William of Orange.
1932 Iraq gained independence from Britain, after 17 years of British rule.
1935 Italian forces invaded Abyssinia (modern-day Ethiopia) without a formal declaration of war.
1981 The second Irish hunger strike at Maze Prison in Northern Ireland was called off. 10 republican prisoners died in the showdown with Margaret Thatcher.