In 1938-39 on the eve of World War II, Nicholas Winton established an organization to rescue Jewish children living in Czechoslovakia from the Holocaust by giving them safe passage to Britain, which had recently approved a measure allowing refugees younger than 17 entry into the country. Winton’s organization ended up saving 669 children — future poets, politicians, scientists, and filmmakers among them. Getting these children out of Czechoslovakia was literally a matter of life and death. From Winton’s Wikipedia page:
The last group of 250, scheduled to leave Prague on 1 September 1939, were unable to depart. With Hitler’s invasion of Poland on the same day, the Second World War had begun. Of the children due to leave on that train, only two survived the war.
Although he continued his humanitarian work after the war, Winton rarely spoke of his efforts in saving the children. The full scope of what he had done was revealed only after his wife found a scrapbook in 1988 of the children’s names and the names of the British families that had taken them in. The public learned of Winton’s efforts on a TV show called That’s Life. Winton believed he was attending the show as an audience member, but it was revealed that he was actually sitting amongst about 2 dozen of the now-grown children that he had saved:
For his efforts, Winton was knighted by Queen Elizabeth II in 2003. He died just a year and a half ago, at the age of 106.