Nicholas Winton helped 669 Jewish children escape the Nazis and his efforts went unrecognised for 50 years. 

Then, in 1988, while sitting as a member of a TV audience, he suddenly found himself surrounded by the kids he had rescued, who were now adults.

https://video.nostr.build/5a62ac7cb8fde4039fe9da46a453917cbca7e6ef7260528952d5d0fd90f1dec1.mp4