Has anyone heard about Lech Walesa?

Lech Walesa, most of the people are not aware of this name because this name has done nothing to the world but has done a great deal of goodness to the communist states in Europe during the 1980's in a small part of the world. He really contributed a lot to his nation and to his people. Now, there must be an idea about him in your enthusiastic minds that, he must be a political person or maybe a king. If you think so, you are totally wrong because he was none among them. He was a worker in the Lenin Shipyard who was dismissed from service in 1976 because of the petty issue that he demanded higher pay. But do you in 1980, he was the one who led the strike of the workers. And soon in October 1990, he became the President of Poland.