Generate a correct and concise answer for the question based on the words in the context.

[Q]: Context : The ESO 3.6 m Telescope is an optical reflecting telescope run by the European Southern Observatory at La Silla Observatory, Chile since 1977, with a clear aperture of about 3.6 metres (140 in) and 8.6 m2 (93 sq ft) area. 
Question : In which year was the service entry date for ESO 3.6 m Telescope?
[A]: 1977


[Q]: Context : The Sleepwalker Killing also known as From the Files of Unsolved Mysteries: 
Question : Which is the basis of The Sleepwalker Killing?
[A]: Unsolved Mysteries


[Q]: Context : The Battle of Jisr Benat Yakub was fought on 27 September 1918 at the beginning of the pursuit by the Desert Mounted Corps of the retreating remnants of the Yildirim Army Group towards Damascus during the Sinai and Palestine Campaign of World War I. After the Battle of Samakh and the Capture of Tiberias, which completed the Egyptian Expeditionary Force's decisive victory in the Battle of Sharon section of the Battle of Megiddo, the Australian Mounted Division attacked and captured a series of rearguard positions. 
Question : The point in time of Battle of Jisr Benat Yakub was when?
[A]:
27 September 1918