Cycles in the Earth's climate, caused by changes in its relationship with the Sun.
The Milankovitch Cycles
Fact of the Day
Before signing the trade embargo against Cuba, John F. Kennedy got his press secretary to buy him 1,000 Cuban cigars.
Quote of the Day
"A revolution is a struggle to the death between the past and the future.
"
~ Fidel Castro
On This Day
1586 American colonists arrived in Plymouth with large quantities of tobacco. Smoking caught on quickly, though it was also used in tea.
1694 The Bank of England was founded by an act of parliament as a way to finance government debt by private subscription.
1943 The concentrated Allied bombing of Hamburg led to a three hour firestorm that killed approx 30,000 civilians.