Yesterday, I missed the birthday of John Amos Comenius, the 17th century Czech "teacher of nations": see the picture on the left side. Sorry for that. Use some standard sources such as the Wikipedia link if you're interested.
In May 2009, it will have been 125 from the death of Bedřich Smetana, one of the two most famous Czech composers. A few weeks ago, it has been 185 years from his birth. The most natural video to include in this text is my video collage of his most renowned composition, "Vltava", composed during 18 days at the end of 1874.
We could say that with those 50,000 of happy viewers, the video has already passed the test of time. ;-)