VirtualGlobetrotting

Today in History – August 15

1185 – The cave city of Vardzia is consecrated by Queen Tamar of Georgia.

Cave City of Vardzia

1977 – The Big Ear, a radio telescope operated by Ohio State University as part of the SETI project, receives a radio signal from deep space; the event is named the “Wow! signal” from the notation made by a volunteer on the project.

'Big Ear' radio telescope