April 12, 1961: First man in space
en.wikipedia.org
en.wikipedia.org
Every year on April 12, there is a celebration called "Yuri's Night: the World Space Party". This year it was celebrated on all seven continents (plus a couple of gatherings in Second Life), and in previous years it has been celebrated on the ISS. It's a great time to reflect on space exploration and technology, as well as on the individual work of astronauts and cosmonauts.
Of particular interest to me is the cultural exchange that went on, even during the Cold War, between those on opposite sides who shared the common experience of having been to space. I had the privilege of picking up some astronauts and cosmonauts at the airport, and every single one of them made a point of telling me about how great it was to interact with those who had been on the other side of the Cold War.
Just to put in perspective, Gagarin was _the_ superhero of every boy in ex-Soviet Union. It wasn't someone like Brittney Spears or Arnold Schwarzenegger. It was a real human being who flew into space. If you can discard all the communist propaganda and other party bullshit, it is pretty cool to have a real cosmonaut as your hero growing up instead of a fictional character or just an actor.