The backstory: in 1988 Sir Nicholas Winton appeared on the BBC show That's Life.
Winton spent years dealing with the guilt he felt over the children he wasn't able to save. Opposing Views reports:
In 1988 his wife discovered a scrapbook, lists of names, and journals that described his rescue plan. She convinced him to go public with his story – whereupon he appeared on That's Life.
And then this happened.
Today Sir Nicholas is 105 years old.
On 1 September 2009 a special "Winton Train" set off from Prague.
This post has been corrected to reflect the fact that much of the information came from Wikipedia and Opposing Views.