Studying how the ground looks, usually with technology. See 'Some Notes on Archaeology'.
Geophysical Surveying
Fact of the Day
The Persian invasion of Greece in 484BCE was the biggest amphibious military operation until D-Day, almost 2,500 years later.
Quote of the Day
"It always seems impossible until it's done.
"
~ Nelson Mandela
On This Day
1016 Cnut defeated Edmund Ironside at the Battle of Assandun, forcing Edmund to make a peace with the invading Danes: he got to keep Wessex, but the rest of England came under Danish rule. A month later, he had died of 'natural causes' so Wessex, too, went to Cnut.
1216 King John died of dysentery. He was succeeded by his nine year old son, Henry III.
1867 The US officially took possession of Alaska. It wasn't a popular decision at the time.
1922 The BBC was founded.
