alt=|thumb|422x422px|Stained glass window showing Eilmer, installed in [[Malmesbury Abbey in 1920]]
Eilmer of Malmesbury (also known as Oliver due to a scribe's miscopying, or Elmer, or Æthelmær) was an 11th-century English Benedictine monk best known for his early attempt at a gliding flight using wings.
Life
Eilmer was a monk of Malmesbury Abbey who wrote on astrology. All that is known of him is from the Gesta regum Anglorum (Deeds of the English Kings), written by the eminent medieval historian William of Malmesbury in about 1125. Being a fellow monk of the same abbey, William almost certainly obtained his account directly from people who knew Eilmer when he was an old man.
If Eilmer had seen Halley's Comet 76 years earlier in 989, he could have been born about 984, making him about five or six years old when he first saw the comet, and therefore old enough to remember it. However the periodicity of comets was probably unknown in Eilmer's time, and so his remark "It is long since I saw you" could have referred to a different, later comet. Since it is known that Eilmer was an "old man" in 1066, and that he had made the flight attempt "in his youth", the event is placed some time during the early 11th century, perhaps in its first decade.
Beyond those based on William's account, there are no other known sources documenting Eilmer's life.
The flight
William records that, in Eilmer's youth, he had read and believed the Greek myth of Daedalus. Thus, Eilmer fixed wings to his hands and feet and launched himself from the top of a tower at Malmesbury Abbey: