Dafydd "David" Rhys Williams is a Canadian physician, public speaker, CEO, author and retired CSA astronaut. Williams was a mission specialist on two Space Shuttle missions. His first spaceflight, STS-90 in 1998, was a 16-day mission aboard Space Shuttle Columbia dedicated to neuroscience research. His second flight, STS-118 in August 2007, was flown by Space Shuttle Endeavour to the International Space Station. During that mission he performed three spacewalks, becoming the third Canadian to perform a spacewalk and setting a Canadian record for total number of spacewalks. These spacewalks combined for a total duration of 17 hours and 47 minutes.
Dafydd Williams, Canadian physician and astronaut
On May 16, in the year 1954, Dafydd Williams, Canadian physician and astronaut. This event is recorded as a Notable Births event in the history of May 16, one of 403 recorded events on this date across all of history.
1 notable person is associated with this event, including Dafydd Williams. Learn more below.
Key Facts
- This event took place on May 16, 1954 (AD era).
- It is categorised as a Notable Births event in recorded history.
- Referenced in 1 Wikipedia article.
- 1 notable person is recorded as involved in or associated with this event.
- Wikipedia source last updated on 6 April 2026.
On This Date in History 403
This article draws on content from Wikipedia, available under CC BY-SA 4.0.
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